Fix whitespace in install and integration docs

Many code blocks are 4spaced, and they render in GitLab
without coloring as a result, even though they are
fenced with a language label. If in a list, other items
will render as being in a code block too, even if not
meant to. This fixes all these issues, and cleans up
minor white space issues in install and integration docs

1 files changed, 52 insertions, 52 deletions

diff --git a/doc/integration/kerberos.md b/doc/integration/kerberos.md
index cf2ef511264..b4f2025265e 100644
--- a/doc/integration/kerberos.md
+++ b/doc/integration/kerberos.md
@@ -50,20 +50,20 @@ For source installations, make sure the `kerberos` gem group
    authentication. In most cases, you only need to enable Kerberos and specify
    the location of the keytab:
 
-    ```yaml
-    omniauth:
-      enabled: true
-      allow_single_sign_on: ['kerberos']
+   ```yaml
+   omniauth:
+     enabled: true
+     allow_single_sign_on: ['kerberos']
 
-    kerberos:
-      # Allow the HTTP Negotiate authentication method for Git clients
-      enabled: true
+   kerberos:
+     # Allow the HTTP Negotiate authentication method for Git clients
+     enabled: true
 
-      # Kerberos 5 keytab file. The keytab file must be readable by the GitLab user,
-      # and should be different from other keytabs in the system.
-      # (default: use default keytab from Krb5 config)
-      keytab: /etc/http.keytab
-    ```
+     # Kerberos 5 keytab file. The keytab file must be readable by the GitLab user,
+     # and should be different from other keytabs in the system.
+     # (default: use default keytab from Krb5 config)
+     keytab: /etc/http.keytab
+   ```
 
 1. [Restart GitLab] for the changes to take effect.
 
@@ -73,13 +73,13 @@ For source installations, make sure the `kerberos` gem group
 
 1. Edit `/etc/gitlab/gitlab.rb`:
 
-    ```ruby
-    gitlab_rails['omniauth_enabled'] = true
-    gitlab_rails['omniauth_allow_single_sign_on'] = ['kerberos']
+   ```ruby
+   gitlab_rails['omniauth_enabled'] = true
+   gitlab_rails['omniauth_allow_single_sign_on'] = ['kerberos']
 
-    gitlab_rails['kerberos_enabled'] = true
-    gitlab_rails['kerberos_keytab'] = "/etc/http.keytab"
-    ```
+   gitlab_rails['kerberos_enabled'] = true
+   gitlab_rails['kerberos_keytab'] = "/etc/http.keytab"
+   ```
 
 1. [Reconfigure GitLab] for the changes to take effect.
 
@@ -149,26 +149,26 @@ keep offering only `basic` authentication.
    (e.g., `/etc/nginx/sites-available/gitlab-ssl`) and configure NGINX to
    listen to port `8443` in addition to the standard HTTPS port:
 
-    ```conf
-    server {
-      listen 0.0.0.0:443 ssl;
-      listen [::]:443 ipv6only=on ssl default_server;
-      listen 0.0.0.0:8443 ssl;
-      listen [::]:8443 ipv6only=on ssl;
-    ```
+   ```conf
+   server {
+     listen 0.0.0.0:443 ssl;
+     listen [::]:443 ipv6only=on ssl default_server;
+     listen 0.0.0.0:8443 ssl;
+     listen [::]:8443 ipv6only=on ssl;
+   ```
 
 1. Update the Kerberos section of [gitlab.yml]:
 
-    ```yaml
-    kerberos:
-      # Dedicated port: Git before 2.4 does not fall back to Basic authentication if Negotiate fails.
-      # To support both Basic and Negotiate methods with older versions of Git, configure
-      # nginx to proxy GitLab on an extra port (e.g. 8443) and uncomment the following lines
-      # to dedicate this port to Kerberos authentication. (default: false)
-      use_dedicated_port: true
-      port: 8443
-      https: true
-    ```
+   ```yaml
+   kerberos:
+     # Dedicated port: Git before 2.4 does not fall back to Basic authentication if Negotiate fails.
+     # To support both Basic and Negotiate methods with older versions of Git, configure
+     # nginx to proxy GitLab on an extra port (e.g. 8443) and uncomment the following lines
+     # to dedicate this port to Kerberos authentication. (default: false)
+     use_dedicated_port: true
+     port: 8443
+     https: true
+   ```
 
 1. [Restart GitLab] and NGINX for the changes to take effect.
 
@@ -178,11 +178,11 @@ keep offering only `basic` authentication.
 
 1. Edit `/etc/gitlab/gitlab.rb`:
 
-    ```ruby
-    gitlab_rails['kerberos_use_dedicated_port'] = true
-    gitlab_rails['kerberos_port'] = 8443
-    gitlab_rails['kerberos_https'] = true
-    ```
+   ```ruby
+   gitlab_rails['kerberos_use_dedicated_port'] = true
+   gitlab_rails['kerberos_port'] = 8443
+   gitlab_rails['kerberos_https'] = true
+   ```
 
 1. [Reconfigure GitLab] for the changes to take effect.
 
@@ -214,12 +214,12 @@ remove the OmniAuth provider named `kerberos` from your `gitlab.yml` /
 1. Edit [gitlab.yml] and remove the `- { name: 'kerberos' }` line under omniauth
    providers:
 
-    ```yaml
-    omniauth:
-      # ...
-      providers:
-        - { name: 'kerberos' } # <-- remove this line
-    ```
+   ```yaml
+   omniauth:
+     # ...
+     providers:
+       - { name: 'kerberos' } # <-- remove this line
+   ```
 
 1. [Restart GitLab] for the changes to take effect.
 
@@ -230,11 +230,11 @@ remove the OmniAuth provider named `kerberos` from your `gitlab.yml` /
 1. Edit `/etc/gitlab/gitlab.rb` and remove the `{ "name" => "kerberos" }` line
    under `gitlab_rails['omniauth_providers']`:
 
-    ```ruby
-    gitlab_rails['omniauth_providers'] = [
-      { "name" => "kerberos" } # <-- remove this entry
-    ]
-    ```
+   ```ruby
+   gitlab_rails['omniauth_providers'] = [
+     { "name" => "kerberos" } # <-- remove this entry
+   ]
+   ```
 
 1. [Reconfigure GitLab] for the changes to take effect.
 
@@ -290,7 +290,7 @@ remote: HTTP Basic: Access denied
 fatal: Authentication failed for '<KRB5 path>'
 ```
 
-If you are using Git v2.11 or newer and see the above error when cloning, you can 
+If you are using Git v2.11 or newer and see the above error when cloning, you can
 set the `http.emptyAuth` Git option to `true` to fix this:
 
 ```