Update cheatsheets

tldr/linux/gedit

@@ -18,7 +18,7 @@ source: https://github.com/tldr-pages/tldr.git
 
 - Open a text file with a specific encoding:
 
-`gedit --encoding={{UTF-8}} {{path/to/file}}`
+`gedit --encoding {{UTF-8}} {{path/to/file}}`
 
 - Display a list of supported encodings:
 

tldr/linux/journalctl

@@ -10,11 +10,11 @@ source: https://github.com/tldr-pages/tldr.git
 
 - Show all messages with priority level 3 (errors) from this [b]oot:
 
-`journalctl -b --priority={{3}}`
+`journalctl -b --priority=3`
 
 - Delete journal logs which are older than 2 days:
 
-`journalctl --vacuum-time={{2d}}`
+`journalctl --vacuum-time=2d`
 
 - Show only the last N li[n]es and [f]ollow new messages (like `tail -f` for traditional syslog):
 

tldr/linux/tailf

@@ -5,7 +5,7 @@ source: https://github.com/tldr-pages/tldr.git
 ---
 # tailf
 
-> This command is superseded by `tail -f`.
+> This command has been superseded by `tail -f`.
 > More information: <https://manned.org/tailf.1>.
 
 - View documentation for the recommended replacement: