⚒️ Adds content warning guidelines page (#200)

* Add empty page content file

* Add link in footer

* Make footer links span two columns when in grid template layout

* wrap footer grid-column in media query to strip triggering 2 columns on mobile

* Add guidelines content

* Capitalise 'Warning'

* Add link to guidance page from guidance definition block

* Change 'term' to 'topic'

* Update 11ty/content-warning-guidelines/index.md

Co-authored-by: Tatiana Mac <github@tatianamac.com>

* Update 11ty/content-warning-guidelines/index.md

Co-authored-by: Tatiana Mac <github@tatianamac.com>

* Update 11ty/content-warning-guidelines/index.md

Co-authored-by: Tatiana Mac <github@tatianamac.com>

* Update 11ty/content-warning-guidelines/index.md

Co-authored-by: Tatiana Mac <github@tatianamac.com>

* Update 11ty/content-warning-guidelines/index.md

Co-authored-by: Tatiana Mac <github@tatianamac.com>

* remove additional line breaks to pass lint tests

* remove my now unneeded media query

* Remove longer content warning from definition page

* Change content warning flag to link to separate content warning guidance page

* remove unneeded content flag styling

Co-authored-by: Tatiana Mac <tatiana.t.mac@gmail.com>
Co-authored-by: Tatiana Mac <github@tatianamac.com>

11ty/_includes/layouts/base.njk

@@ -25,7 +25,9 @@
           <li>
             <a href="/documentation/">Documentation</a>
           </li>
-          &bull;
+          <li>
+            <a href="/content-warning-guidelines/">Content Warning Guidelines</a>
+          </li>
           <li>
             <a href="{{ metadata.feedPermalink | absoluteUrl(metadata.url) }}">RSS Feed</a>
           </li>