pages*/*: update outdated pages, pages/*: fix placeholders (#14171)

pages/common/docker-ps.md

@@ -25,7 +25,7 @@
 
 - Filter containers by exit status code:
 
-`docker ps --all --filter="exited={{code}}"`
+`docker ps --all --filter "exited={{code}}"`
 
 - Filter containers by status (created, running, removing, paused, exited and dead):
 

pages/common/dust.md

@@ -13,11 +13,11 @@
 
 - Display 30 directories (defaults to 21):
 
-`dust --number-of-lines {{30}}`
+`dust --number-of-lines 30`
 
 - Display information for the current directory, up to 3 levels deep:
 
-`dust --depth {{3}}`
+`dust --depth 3`
 
 - Display the biggest directories at the top in descending order:
 

pages/common/id3tag.md

@@ -9,7 +9,7 @@
 
 - Set album title of all MP3 files in the current directory:
 
-`id3tag --album={{album}} {{*.mp3}}`
+`id3tag --album {{album}} {{*.mp3}}`
 
 - Display help:
 

pages/common/mpv.md

@@ -26,7 +26,7 @@
 
 - Play a file at a specified speed (1 by default):
 
-`mpv --speed={{0.01..100}} {{path/to/file}}`
+`mpv --speed {{0.01..100}} {{path/to/file}}`
 
 - Play a file using a profile defined in the `mpv.conf` file: