📃 Adds Frequently Asked Questions (FAQs) Page (Issue #246) (#288)

* Initial Frequently Asked Questions (FAQs) page that is a child to the Documentation page and cross-linked accordingly. Corresponds to issue #246

* Cross-referencing and linking to the new FAQs page (b55ec86) from the Contributing Guidelines docs. Corresponds to issue #246

* Doh! Inadvertently removed the `Get Help` sub-heading under c98290e; this commit adds `Get Help` back

* linting - updating unordered bullets to dash instead of asterisk

* adding copy and link to joining the Self-Defined app Slack community per feedback from Tatiana

* Update 11ty/documentation/index.md

Feedback from Tatiana

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

* Update 11ty/documentation/frequently-asked-questions.md

Copy feedback from Tatiana

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

* tidying up copy for FAQs page per Tatiana feedback, specifically under `Open PR`

* additional copy cleanup and updates per Tatiana PR feedback

* converting the FAQ markdown page (b55ec86, 5552abd) to a njk html template since we're utilizing dl, dt & dd markup tags for our FAQ content. Changes include corresponding CSS rules for dl and dt tags and minor punctuation update in the contributing guidelines. Addresses issue #246

Co-authored-by: Manny Becerra <mannybecerra@users.noreply.github.com>
Co-authored-by: Tatiana Mac <github@tatianamac.com>

assets/css/components/_lists.scss

@@ -1,4 +1,4 @@
-ol {
+ol, dl {
   margin: 0;
   padding: 0 0 0 1em;
 }
@@ -21,6 +21,10 @@ li {
   }
 }
 
+dt {
+  font-weight: $bold;
+}
+
 .list-semicolon {
   list-style: none;
   margin: 0;