weechat: add page (#10418)

* weechat: add page

---------

Co-authored-by: Lena <126529524+acuteenvy@users.noreply.github.com>

pages/common/weechat.md

@@ -0,0 +1,24 @@
+# weechat
+
+> Command-line internet relay chat client with various features.
+> More information: <https://weechat.org/doc>.
+
+- Start `weechat`:
+
+`weechat`
+
+- Do not load any plugin(s) on startup:
+
+`weechat --no-plugin`
+
+- Do not load any script(s) on startup:
+
+`weechat --no-script`
+
+- Do not connect to servers automatically:
+
+`weechat --no-connect`
+
+- Write default terminal colors to stdout:
+
+`weechat --colors`