add archbitfix, nocontents and fix exfat command to link to wiki sd f…

…ormatting page (#1248)

* add archbitfix and nocontents

* update exfat.switch.md to link to wiki format page instead

* add 3dsgba command

cogs/assistance-cmds/3dsgba.3ds.md

@@ -0,0 +1,5 @@
+---
+help-desc: Running GBA games on your 3DS
+---
+
+Want to know how to run GBA games on your 3DS? https://wiki.hacks.guide/wiki/3DS:GBA_games

cogs/assistance-cmds/archbitfix.switch.md

@@ -0,0 +1,8 @@
+---
+title: Fix unintended archive bits with Hekate
+help-desc: How to fix unintended archive bits on your SD Card with Hekate
+---
+
+To fix any unintended archive bits on the Switch:
+
+Boot into Hekate, then press Tools ➜ Arch bit • RCM Touch • Pkg1/2 ➜ Fix Archive Bit.

cogs/assistance-cmds/exfat.switch.md

@@ -11,8 +11,4 @@ While the Switch supports exFAT through an additional update from Nintendo, here
 - This filesystem is prone to corruption.
 - Nintendo doesn't use files larger than 4GB, even with large games and exFAT.
 
-Here are some links to common FAT32 formatting tools:
-- [GUIFormat](http://ridgecrop.co.uk/index.htm?guiformat.htm) (Windows)
-- [gparted](https://gparted.org/download.php) + [dosfstools](https://github.com/dosfstools/dosfstools) (Linux)
-- [Disk Utility](https://support.apple.com/guide/disk-utility/format-a-disk-for-windows-computers-dskutl1010) (MacOS)
-MacOS: Always select "MS-DOS (FAT)", even if the card is larger than 32GB.
+To reformat your SD Card to FAT32, follow this [guide](https://wiki.hacks.guide/wiki/Formatting_an_SD_card).

cogs/assistance-cmds/nocontents.switch.md

@@ -0,0 +1,10 @@
+---
+title: If your Switch crashes on boot
+help-desc: How to temporarily rename the Atmosphere contents folder
+---
+
+Sometimes sysmodules and other LayeredFS files can cause boot errors or crashes.
+
+You can test if this is the case by removing the contents folder temporarily and booting without it.
+
+Rename `/atmosphere/contents` to `/atmosphere/oldcontents`, and boot Atmosphere again. If the Switch boots successfully, one of the items in the contents folder was the culprit.