tlmgr-update: add page (#6587)

pages/common/tlmgr-update.md

@@ -0,0 +1,32 @@
+# tlmgr update
+
+> Update TeX Live packages.
+> More information: <https://www.tug.org/texlive/tlmgr.html>.
+
+- Update all TeX Live packages:
+
+`sudo tlmgr update --all`
+
+- Update tlmgr itself:
+
+`sudo tlmgr update --self`
+
+- Update a specific package:
+
+`sudo tlmgr update {{package}}`
+
+- Update all except a specific package:
+
+`sudo tlmgr update --all --exclude {{package}}`
+
+- Update all packages, making a backup of the current packages:
+
+`sudo tlmgr update --all --backup`
+
+- Update a specific package without updating its dependencies:
+
+`sudo tlmgr update --no-depends {{package}}`
+
+- Simulate updating all packages without making any changes:
+
+`sudo tlmgr update --all --dry-run`