Update cheatsheets

tldr/linux/aura

@@ -8,34 +8,30 @@ source: https://github.com/tldr-pages/tldr.git
 > The Aura Package Manager: a secure, multilingual package manager for Arch Linux and the AUR.
 > More information: <https://github.com/fosskers/aura>.
 
-- Search for packages from the official repositories and AUR:
+- Search for packages from the AUR:
 
-`aura --aursync --both --search {{keyword|regex}}`
+`aura {{[-As|--aursync --search]}} {{keyword|regex}}`
 
 - Install a package from the AUR:
 
-`aura --aursync {{package}}`
+`aura {{[-A|--aursync]}} {{package}}`
 
 - Update all AUR packages in a verbose mode and remove all make dependencies:
 
-`aura --aursync --diff --sysupgrade --delmakedeps --unsuppress`
+`aura {{[-Akua|--aursync --diff --sysupgrade --delmakedeps]}}`
 
 - Install a package from the official repositories:
 
-`aura --sync {{package}}`
+`aura {{[-S|--sync]}} {{package}}`
 
 - Synchronize and update all packages from the official repositories:
 
-`aura --sync --refresh --sysupgrade`
-
-- Downgrade a package using the package cache:
-
-`aura --downgrade {{package}}`
+`aura {{[-Syu|--sync --refresh --sysupgrade]}}`
 
 - Remove a package and its dependencies:
 
-`aura --remove --recursive --unneeded {{package}}`
+`aura {{[-Rsu|--remove --recursive --unneeded]}} {{package}}`
 
 - Remove orphan packages (installed as dependencies but not required by any package):
 
-`aura --orphans --abandon`
+`aura {{[-Oj|--orphans --abandon]}}`