Docs: add a living faq document for sharing dev solutions (#3156)

* adding one faq :)

* adding another faq that links to the relevant file

* add lined line breaks between questions and lower the heading size of the question so sub-divisions can be added later

* missed some newlines

* updating best practice filler method

* add note about get_filler_item_name()

* updates to wording from review

* add section to CODEOWNERS for maintainers of this doc

* use underscores to reference the file easier in CODEOWNERS

* update link to be direct and filter to function name

docs/CODEOWNERS

@@ -1,8 +1,8 @@
 # Archipelago World Code Owners / Maintainers Document
 #
-# This file is used to notate the current "owners" or "maintainers" of any currently merged world folder. For any pull
-# requests that modify these worlds, a code owner must approve the PR in addition to a core maintainer. This is not to
-# be used for files/folders outside the /worlds folder, those will always need sign off from a core maintainer.
+# This file is used to notate the current "owners" or "maintainers" of any currently merged world folder as well as
+# certain documentation. For any pull requests that modify these worlds/docs, a code owner must approve the PR in
+# addition to a core maintainer. All other files and folders are owned and maintained by core maintainers directly.
 #
 # All usernames must be GitHub usernames (and are case sensitive).
 
@@ -226,3 +226,11 @@
 
 # Ori and the Blind Forest
 # /worlds_disabled/oribf/
+
+###################
+## Documentation ##
+###################
+
+# Apworld Dev Faq
+/docs/apworld_dev_faq.md @qwint @ScipioWright
+