brew-{update,upgrade,list,outdated,search}: add page (#11389)

* brew-update: add page

* brew-upgrade: add page

* brew-list: add page

* brew-outdated: add page

* brew-search: add page

pages/common/brew-search.md

@@ -0,0 +1,24 @@
+# brew search
+
+> Search for casks and formulae.
+> More information: <https://docs.brew.sh/Manpage#search--s-options-textregex->.
+
+- Search for casks and formulae using a keyword:
+
+`brew search {{keyword}}`
+
+- Search for casks and formulae using a regular expression:
+
+`brew search /{{regular_expression}}/`
+
+- Enable searching through descriptions:
+
+`brew search --desc {{keyword}}`
+
+- Only search for formulae:
+
+`brew search --formula {{keyword}}`
+
+- Only search for casks:
+
+`brew search --cask {{keyword}}`