deps: Update go-org to v1.3.0

- Add support for image links (i.e. link with image as description)
- Kinda breaking: Wrap headlines and headline+content in containers as emacs
  Org mode does. Could break people's styles - I don't expect it, but who knows
  what counts as sane when it comes to css.

  Before:

  ```
  <h2 id="headline-1">FOO</h2>
  foo bar
  ```

  After:

  ```
  <div id="outline-container-headline-1" class="outline-2">
  <h2 id="headline-1">FOO</h2>
  <div id="outline-text-headline-1" class="outline-text-2">
  foo bar
  </div>
  </div>
  ```

1 files changed, 2 insertions, 2 deletions

diff --git a/go.sum b/go.sum
index 5781677cd..98f010ece 100644
--- a/go.sum
+++ b/go.sum
@@ -262,8 +262,8 @@ github.com/nfnt/resize v0.0.0-20180221191011-83c6a9932646 h1:zYyBkD/k9seD2A7fsi6
 github.com/nfnt/resize v0.0.0-20180221191011-83c6a9932646/go.mod h1:jpp1/29i3P1S/RLdc7JQKbRpFeM1dOBd8T9ki5s+AY8=
 github.com/nicksnyder/go-i18n v1.10.0 h1:5AzlPKvXBH4qBzmZ09Ua9Gipyruv6uApMcrNZdo96+Q=
 github.com/nicksnyder/go-i18n v1.10.0/go.mod h1:HrK7VCrbOvQoUAQ7Vpy7i87N7JZZZ7R2xBGjv0j365Q=
-github.com/niklasfasching/go-org v1.2.0 h1:Bx495Vvb/KMdmvhSnbFiTySlG+x9OMMtVFXTjneuTwM=
-github.com/niklasfasching/go-org v1.2.0/go.mod h1:AsLD6X7djzRIz4/RFZu8vwRL0VGjUvGZCCH1Nz0VdrU=
+github.com/niklasfasching/go-org v1.3.0 h1:X8Ob7WOF61iP4KnisZo1eVVei8/GzmNz3ymJrYLnIic=
+github.com/niklasfasching/go-org v1.3.0/go.mod h1:AsLD6X7djzRIz4/RFZu8vwRL0VGjUvGZCCH1Nz0VdrU=
 github.com/nkovacs/streamquote v0.0.0-20170412213628-49af9bddb229/go.mod h1:0aYXnNPJ8l7uZxf45rWW1a/uME32OF0rhiYGNQ2oF2E=
 github.com/oklog/ulid v1.3.1/go.mod h1:CirwcVhetQ6Lv90oh/F+FBtV6XMibvdAFo93nm5qn4U=
 github.com/olekukonko/tablewriter v0.0.4 h1:vHD/YYe1Wolo78koG299f7V/VAS08c6IpCLn+Ejf/w8=