doc: use sentence-case for headings in docs

PR-URL: https://github.com/nodejs/node/pull/33889
Refs: https://developers.google.com/style/capitalization#capitalization-in-titles-and-headings
Refs: https://docs.microsoft.com/en-us/style-guide/capitalization
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

1 files changed, 22 insertions, 22 deletions

diff --git a/doc/api/child_process.md b/doc/api/child_process.md
index 2f18567737e..ba29c0dc5f0 100644
--- a/doc/api/child_process.md
+++ b/doc/api/child_process.md
@@ -1,4 +1,4 @@
-# Child Process
+# Child process
 
 <!--introduced_in=v0.10.0-->
 
@@ -70,7 +70,7 @@ For certain use cases, such as automating shell scripts, the
 the synchronous methods can have significant impact on performance due to
 stalling the event loop while spawned processes complete.
 
-## Asynchronous Process Creation
+## Asynchronous process creation
 
 The [`child_process.spawn()`][], [`child_process.fork()`][], [`child_process.exec()`][],
 and [`child_process.execFile()`][] methods all follow the idiomatic asynchronous
@@ -153,7 +153,7 @@ changes:
   * `env` {Object} Environment key-value pairs. **Default:** `process.env`.
   * `encoding` {string} **Default:** `'utf8'`
   * `shell` {string} Shell to execute the command with. See
-    [Shell Requirements][] and [Default Windows Shell][]. **Default:**
+    [Shell requirements][] and [Default Windows shell][]. **Default:**
     `'/bin/sh'` on Unix, `process.env.ComSpec` on Windows.
   * `timeout` {number} **Default:** `0`
   * `maxBuffer` {number} Largest amount of data in bytes allowed on stdout or
@@ -270,8 +270,8 @@ changes:
     done on Windows. Ignored on Unix. **Default:** `false`.
   * `shell` {boolean|string} If `true`, runs `command` inside of a shell. Uses
     `'/bin/sh'` on Unix, and `process.env.ComSpec` on Windows. A different
-    shell can be specified as a string. See [Shell Requirements][] and
-    [Default Windows Shell][]. **Default:** `false` (no shell).
+    shell can be specified as a string. See [Shell requirements][] and
+    [Default Windows shell][]. **Default:** `false` (no shell).
 * `callback` {Function} Called with the output when process terminates.
   * `error` {Error}
   * `stdout` {string|Buffer}
@@ -355,7 +355,7 @@ changes:
     **Default:** `process.execArgv`.
   * `serialization` {string} Specify the kind of serialization used for sending
     messages between processes. Possible values are `'json'` and `'advanced'`.
-    See [Advanced Serialization][] for more details. **Default:** `'json'`.
+    See [Advanced serialization][] for more details. **Default:** `'json'`.
   * `silent` {boolean} If `true`, stdin, stdout, and stderr of the child will be
     piped to the parent, otherwise they will be inherited from the parent, see
     the `'pipe'` and `'inherit'` options for [`child_process.spawn()`][]'s
@@ -434,11 +434,11 @@ changes:
   * `gid` {number} Sets the group identity of the process (see setgid(2)).
   * `serialization` {string} Specify the kind of serialization used for sending
     messages between processes. Possible values are `'json'` and `'advanced'`.
-    See [Advanced Serialization][] for more details. **Default:** `'json'`.
+    See [Advanced serialization][] for more details. **Default:** `'json'`.
   * `shell` {boolean|string} If `true`, runs `command` inside of a shell. Uses
     `'/bin/sh'` on Unix, and `process.env.ComSpec` on Windows. A different
-    shell can be specified as a string. See [Shell Requirements][] and
-    [Default Windows Shell][]. **Default:** `false` (no shell).
+    shell can be specified as a string. See [Shell requirements][] and
+    [Default Windows shell][]. **Default:** `false` (no shell).
   * `windowsVerbatimArguments` {boolean} No quoting or escaping of arguments is
     done on Windows. Ignored on Unix. This is set to `true` automatically
     when `shell` is specified and is CMD. **Default:** `false`.
@@ -699,7 +699,7 @@ see [V8 issue 7381](https://bugs.chromium.org/p/v8/issues/detail?id=7381).
 
 See also: [`child_process.exec()`][] and [`child_process.fork()`][].
 
-## Synchronous Process Creation
+## Synchronous process creation
 
 The [`child_process.spawnSync()`][], [`child_process.execSync()`][], and
 [`child_process.execFileSync()`][] methods are synchronous and will block the
@@ -755,8 +755,8 @@ changes:
     normally be created on Windows systems. **Default:** `false`.
   * `shell` {boolean|string} If `true`, runs `command` inside of a shell. Uses
     `'/bin/sh'` on Unix, and `process.env.ComSpec` on Windows. A different
-    shell can be specified as a string. See [Shell Requirements][] and
-    [Default Windows Shell][]. **Default:** `false` (no shell).
+    shell can be specified as a string. See [Shell requirements][] and
+    [Default Windows shell][]. **Default:** `false` (no shell).
 * Returns: {Buffer|string} The stdout from the command.
 
 The `child_process.execFileSync()` method is generally identical to
@@ -804,7 +804,7 @@ changes:
     **Default:** `'pipe'`.
   * `env` {Object} Environment key-value pairs. **Default:** `process.env`.
   * `shell` {string} Shell to execute the command with. See
-    [Shell Requirements][] and [Default Windows Shell][]. **Default:**
+    [Shell requirements][] and [Default Windows shell][]. **Default:**
     `'/bin/sh'` on Unix, `process.env.ComSpec` on Windows.
   * `uid` {number} Sets the user identity of the process. (See setuid(2)).
   * `gid` {number} Sets the group identity of the process. (See setgid(2)).
@@ -884,8 +884,8 @@ changes:
     **Default:** `'buffer'`.
   * `shell` {boolean|string} If `true`, runs `command` inside of a shell. Uses
     `'/bin/sh'` on Unix, and `process.env.ComSpec` on Windows. A different
-    shell can be specified as a string. See [Shell Requirements][] and
-    [Default Windows Shell][]. **Default:** `false` (no shell).
+    shell can be specified as a string. See [Shell requirements][] and
+    [Default Windows shell][]. **Default:** `false` (no shell).
   * `windowsVerbatimArguments` {boolean} No quoting or escaping of arguments is
     done on Windows. Ignored on Unix. This is set to `true` automatically
     when `shell` is specified and is CMD. **Default:** `false`.
@@ -1025,7 +1025,7 @@ message might not be the same as what is originally sent.
 If the `serialization` option was set to `'advanced'` used when spawning the
 child process, the `message` argument can contain data that JSON is not able
 to represent.
-See [Advanced Serialization][] for more details.
+See [Advanced serialization][] for more details.
 
 ### `subprocess.channel`
 <!-- YAML
@@ -1543,13 +1543,13 @@ This impacts output that includes multibyte character encodings such as UTF-8 or
 UTF-16. For instance, `console.log('中文测试')` will send 13 UTF-8 encoded bytes
 to `stdout` although there are only 4 characters.
 
-## Shell Requirements
+## Shell requirements
 
 The shell should understand the `-c` switch. If the shell is `'cmd.exe'`, it
 should understand the `/d /s /c` switches and command line parsing should be
 compatible.
 
-## Default Windows Shell
+## Default Windows shell
 
 Although Microsoft specifies `%COMSPEC%` must contain the path to
 `'cmd.exe'` in the root environment, child processes are not always subject to
@@ -1557,7 +1557,7 @@ the same requirement. Thus, in `child_process` functions where a shell can be
 spawned, `'cmd.exe'` is used as a fallback if `process.env.ComSpec` is
 unavailable.
 
-## Advanced Serialization
+## Advanced serialization
 <!-- YAML
 added:
  - v13.2.0
@@ -1578,7 +1578,7 @@ Therefore, this feature requires opting in by setting the
 `serialization` option to `'advanced'` when calling [`child_process.spawn()`][]
 or [`child_process.fork()`][].
 
-[Advanced Serialization]: #child_process_advanced_serialization
+[Advanced serialization]: #child_process_advanced_serialization
 [`'disconnect'`]: process.html#process_event_disconnect
 [`'error'`]: #child_process_event_error
 [`'exit'`]: #child_process_event_exit
@@ -1611,8 +1611,8 @@ or [`child_process.fork()`][].
 [`subprocess.stdio`]: #child_process_subprocess_stdio
 [`subprocess.stdout`]: #child_process_subprocess_stdout
 [`util.promisify()`]: util.html#util_util_promisify_original
-[Default Windows Shell]: #child_process_default_windows_shell
+[Default Windows shell]: #child_process_default_windows_shell
 [HTML structured clone algorithm]: https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Structured_clone_algorithm
-[Shell Requirements]: #child_process_shell_requirements
+[Shell requirements]: #child_process_shell_requirements
 [synchronous counterparts]: #child_process_synchronous_process_creation
 [v8.serdes]: v8.html#v8_serialization_api