tlmgr-platform: add option placeholders, tlmgr: update more info link (#19911)

Author: Managor

pages/common/tlmgr-platform.md

@@ -5,20 +5,20 @@
 
 - List all available platforms in the package repository:
 
-`tlmgr platform list`
+`tlmgr {{[arch|platform]}} list`
 
 - Add the executables for a specific platform:
 
-`sudo tlmgr platform add {{platform}}`
+`sudo tlmgr {{[arch|platform]}} add {{platform}}`
 
 - Remove the executables for a specific platform:
 
-`sudo tlmgr platform remove {{platform}}`
+`sudo tlmgr {{[arch|platform]}} remove {{platform}}`
 
 - Auto-detect and switch to the current platform:
 
-`sudo tlmgr platform set auto`
+`sudo tlmgr {{[arch|platform]}} set auto`
 
 - Switch to a specific platform:
 
-`sudo tlmgr platform set {{platform}}`
+`sudo tlmgr {{[arch|platform]}} set {{platform}}`

pages/common/tlmgr.md

@@ -2,7 +2,7 @@
 
 > Manage packages and configuration options of an existing TeX Live installation.
 > Some subcommands such as `paper` have their own usage documentation.
-> More information: <https://www.tug.org/texlive/doc/tlmgr.html#ACTIONS>.
+> More information: <https://www.tug.org/texlive/doc/tlmgr.html#NAME>.
 
 - Install a package and its dependencies: