GH Actions: add workflow to automatically deploy the wiki

Author: jrfnl

.github/workflows/deploy-to-wiki.yml

@@ -0,0 +1,15 @@
+
+
+Automatically add the following at the top of each file:
+
+```
+<!--
+DO NOT EDIT THIS FILE IN THE WIKI.
+This wiki is updated from the https://github.com/PHPCSStandards/PHP_CodeSniffer-documentation repo.
+Submit a PR to that repo updating the file in the `/wiki/` subdirectory instead.
+-->
+```
+
+
+Automatically replace output example placeholders with real output
+

.github/workflows/publish-wiki.yml

@@ -93,6 +93,8 @@ jobs:
       - name: Re-run tables of contents with different settings for specific file
         run: doctoc ./_wiki/Version-4.0-User-Upgrade-Guide.md --github --maxlevel 3 --update-only
 
+      # TODO:
+      # Update output examples
 
       # ############################
       # Deploy.