Update app_examples.md

Reduce the maximum line length to 120 characters.

Fix some spelling errors that Obsidian didn't pick up for me. (whoops!)

docs/app_examples.md

@@ -237,19 +237,17 @@ This script is intended as a drop-in replacement with the same syntax. (It can b
 |-----------|--------------------------------------------------------------------------------------------------------------------------------------|
 | Do        | @code{}sh -c "kscreen-doctor output.HDMI-A-1.mode.${SUNSHINE_CLIENT_WIDTH}x${SUNSHINE_CLIENT_HEIGHT}@${SUNSHINE_CLIENT_FPS}"@endcode |
 | Undo      | @code{}kscreen-doctor output.HDMI-A-1.mode.3840x2160@120@endcode                                                                     |
-@attention{The names of your displays will differ between X11 and Wayland. Be sure to use the correct name, depending on your session manager.
+@attention{The names of your displays will differ between X11 and Wayland.
+Be sure to use the correct name, depending on your session manager.
 
 (e.g. on X11, the monitor may be called HDMI-A-0, but on Wayland, it may be called "HDMI-A-1")
-
 }
-
 @hint{Replace "HDMI-A-1 with the display name of the monitor you would like to use for moonlight.
-
 You can list the monitors available to you with `kscreen-doctor -o`
-
-These will also give you the supported display properites for each monitor. You can select them either with by hardoding them their corresponding number 
-(e.g. `kscreen-doctor output.HDMI-A1.mode.0` or usuing the above "do" command to fetch the resolution requested by your moonlight client
-(which has a chance of not being supported by your monitor).
+These will also give you the supported display properties for each monitor. You can select them either by
+hard-coding them their corresponding number (e.g. `kscreen-doctor output.HDMI-A1.mode.0`) or using the above
+"do" command to fetch the resolution requested by your moonlight client (which has a chance of not being supported
+by your monitor).
 }
 ###### NVIDIA