Update cheatsheets

tldr/ffmpeg

@@ -6,7 +6,7 @@ source: https://github.com/tldr-pages/tldr.git
 # ffmpeg
 
 > Video conversion tool.
-> More information: <https://ffmpeg.org>.
+> More information: <https://ffmpeg.org/ffmpeg.html#Options>.
 
 - Extract the sound from a video and save it as MP3:
 

tldr/linux/betterlockscreen

@@ -6,7 +6,7 @@ source: https://github.com/tldr-pages/tldr.git
 # betterlockscreen
 
 > Simple, minimal lock screen.
-> More information: <https://github.com/betterlockscreen/betterlockscreen>.
+> More information: <https://github.com/betterlockscreen/betterlockscreen#usage>.
 
 - Lock the screen:
 

tldr/linux/fscrypt

@@ -8,9 +8,13 @@ source: https://github.com/tldr-pages/tldr.git
 > Go tool for managing Linux filesystem encryption.
 > More information: <https://github.com/google/fscrypt>.
 
-- Prepare the root filesystem for use with fscrypt:
+- Prepare the root filesystem for use with `fscrypt`:
 
-`fscrypt setup`
+`sudo fscrypt setup`
+
+- Prepare a specific mountpoint for use with `fscrypt`:
+
+`fscrypt setup {{path/to/directory}}`
 
 - Enable filesystem encryption for a directory:
 

tldr/linux/iwctl

@@ -8,15 +8,15 @@ source: https://github.com/tldr-pages/tldr.git
 > Control the `iwd` network supplicant.
 > More information: <https://manned.org/iwctl>.
 
-- Start the interactive mode, in this mode you can enter the commands directly, with autocompletion:
+- Run `iwctl` in interactive mode:
 
 `iwctl`
 
-- Display your Wi-Fi stations:
+- Display Wi-Fi stations:
 
 `iwctl station list`
 
-- Start looking for networks with a station:
+- Look for networks with a station:
 
 `iwctl station {{station}} scan`
 

tldr/yt-dlp

@@ -8,7 +8,7 @@ source: https://github.com/tldr-pages/tldr.git
 > A youtube-dl fork with additional features and fixes.
 > Download videos from YouTube and other websites.
 > See also: `ytfzf`.
-> More information: <https://github.com/yt-dlp/yt-dlp>.
+> More information: <https://github.com/yt-dlp/yt-dlp#usage-and-options>.
 
 - Download a video or playlist (with the default options from command below):