Move more info from main repo's wiki (#78)

Move more info from main repo's wiki

src/help/faq/application.md

@@ -98,6 +98,16 @@ Read more [here](/help/guides/general/#language)
 :::
 
 ## Miscellaneous
+### What happened to the F-Droid version?
+F-Droid is no longer an officially supported option. Both the stable and dev builds now include an autoupdate mechanism.
+
+An unofficial F-Droid repo is available at [Efreak/tachiyomi-extensions](https://github.com/Efreak/tachiyomi-extensions).
+
+### Why do I get a `App not installed` error when installing?
+You may encounter this if you're installing an official build over an existing F-Droid build due to differing signatures.
+
+Backup your data, uninstall the app, then restore the data in the fresh install.
+
 ### iOS Version
 There is currently no iOS version and there are no plans for one and since iOS and Android apps don't share code it's hard to port.
 

src/help/faq/extensions.md

@@ -18,15 +18,18 @@ User [SnakeDoc83](https://github.com/snakedoc83) has made a handy spreadsheet sh
 Access the spreadsheet [here](https://docs.google.com/spreadsheets/d/1TyJEUg78WWH4zgnf3g6M2lkbWpBWbd40FYiPVQhW8IU/edit#gid=0)
 :::
 
-### Why won't the extensions install?
+### How do I request a new extension?
-In some cases your phone might have some issues downloading the extensions, in those cases you can try installing them yourselves directly from the source.
+Open an issue [on GitHub](https://github.com/inorichi/tachiyomi-extensions/issues) if one does not already exist.
-
-To install just download the file for the extension you want and then install it, like how you installed **Tachiyomi**.
 
 ::: aside
 You can find the list of extensions to download [here](/extensions/)
 :::
 
+### Why won't the extensions install?
+In some cases your phone might have some issues downloading the extensions, in those cases you can try installing them yourselves directly from the source.
+
+To install just download the file for the extension you want and then install it, like how you installed **Tachiyomi**.
+
 ### How do I allow third-party installations?
 When installing your first extension and are prompted that your phone isn't allowed to install unknown apps from that source, simply follow the prompt to allow it.
 
@@ -116,6 +119,15 @@ It means that the respective extension for the manga is not installed. To fix, i
 #### Value Manga is licensed at data of type java.lang.String cannot be converted to JSONObject
 This means that the manga has been licensed and can no longer be read on that source. Try a different source to read the manga.
 
+#### HTTP error 503
+The source you selected may have Cloudflare protection on and is enforcing CAPTCHAs.
+
+1. Find a manga in your library that is from the source you're trying to access
+1. Tap on the overflow menu in the Info tab (3 dots)
+1. Open in Webview
+1. Complete the CAPTCHA if present and wait for the page to finish loading
+1. Press back rather than exiting the app and if that does not work, use the back arrow
+
 ## MangaDex
 
 ### No results when searching

src/help/guides/source-problems.md

@@ -42,9 +42,9 @@ All of the above are very imprecise and fuzzy rules, because each site has their
 
 ### Everyone is having this problem
 In this case it is a problem with the site.
-1. Have a look at [open](https://github.com/inorichi/tachiyomi/issues) issues.
+1. Have a look at open issues [for the app](https://github.com/inorichi/tachiyomi/issues) and/or [extensions](https://github.com/inorichi/tachiyomi-extensions/issues).
-1. It may have been fixed already, but not released yet, so look at [closed](https://github.com/inorichi/tachiyomi/issues?q=is%3Aissue+is%3Aclosed) issues as well.
+1. It may have been fixed already, but not released yet, so look at closed issues ([app](https://github.com/inorichi/tachiyomi/issues?q=is%3Aissue+is%3Aclosed) / [extensions](https://github.com/inorichi/tachiyomi-extensions/issues?q=is%3Aissue+is%3Aclosed)) issues as well.
-1. If you can't find the issue there, you can open a new one.
+1. If you can't find the issue there, open a new one.
 
 ## Solving a CAPTCHA <Badge text="0.8.4 +" vertical="middle"/>