add VisualEditor and Parsoid config

Dockerfile

@@ -9,7 +9,8 @@ WORKDIR /
 # Install extensions
 ADD add_extension.sh /add_extension.sh
 RUN chmod +x add_extension.sh
-RUN ./add_extension.sh Scribunto $MEDIAWIKI_BRANCH
+RUN ./add_extension.sh Scribunto $MEDIAWIKI_BRANCH && \
+    ./add_extension.sh VisualEditor $MEDIAWIKI_BRANCH
 
 ADD setup.sh /setup.sh
 RUN chmod +x /setup.sh

README.md

@@ -7,5 +7,7 @@ It extends [the official image](https://hub.docker.com/_/mediawiki/) with the fo
 * Scribunto
 * VisualEditor
 
+VisualEditor requires a Parsoid service; see `docker-compose.yml` for example.
+
 ## Auto-migration
 The image will automatically run migration when a new version is installed.

docker-compose.yml

@@ -17,3 +17,8 @@ services:
         links:
             - db
             - cache
+            - parsoid
+    parsoid:
+        image: thenets/parsoid:0.10
+        environment:
+            PARSOID_DOMAIN_web: http://web/api.php