Run update.sh

mediawiki/README.md

@@ -129,10 +129,10 @@ services:
       MYSQL_DATABASE: my_wiki
       MYSQL_USER: wikiuser
       MYSQL_PASSWORD: example
-      MYSQL_RANDOM_ROOT_PASSWORD: yes
+      MYSQL_RANDOM_ROOT_PASSWORD: 'yes'
 ```
 
-[![Try in PWD](https://github.com/play-with-docker/stacks/raw/cff22438cb4195ace27f9b15784bbb497047afa7/assets/images/button.png)](http://play-with-docker.com?stack=https://raw.githubusercontent.com/docker-library/docs/9efeec18b6b2ed232cf0fbd3914b6211e16e242c/mediawiki/stack.yml)
+[![Try in PWD](https://github.com/play-with-docker/stacks/raw/cff22438cb4195ace27f9b15784bbb497047afa7/assets/images/button.png)](http://play-with-docker.com?stack=https://raw.githubusercontent.com/docker-library/docs/7b72bad5e2c684fa5829aecd3bf5b17a6e685963/mediawiki/stack.yml)
 
 Run `docker stack deploy -c stack.yml mediawiki` (or `docker-compose -f stack.yml up`), wait for it to initialize completely, and visit `http://swarm-ip:8080`, `http://localhost:8080`, or `http://host-ip:8080` (as appropriate).