Update wiki version for security fix

Dockerfile

@@ -6,7 +6,7 @@ RUN useradd --create-home app \
     jq \
     git
 WORKDIR /home/app
-ARG WIKI_PACKAGE=wiki@0.14.0
+ARG WIKI_PACKAGE=wiki@0.15.0
 RUN su app -c "npm install -g --prefix . $WIKI_PACKAGE"
 RUN su app -c "mkdir .wiki"
 COPY configure-wiki set-owner-name ./

README.md

@@ -36,13 +36,23 @@ Visit http://localhost:3000
 
 # Development
 
-This image's tag matches the version of the included wiki software.
+This image's tag does not match the version of the included wiki software.
 
 Notes to self:
 
 ``` bash
-git tag -am "" '0.14.0'
+git tag -am "" '0.50.0'
 git push --tags
 ```
 
 The repos in Dockerhub and GitHub are configured to automatically build new tags.
+
+# Publish experimental plugins
+
+``` bash
+docker build \
+  --tag dobbs/farm:0.14.0-frame \
+  --build-arg WIKI_PACKAGE='dobbs/wiki#frame' \
+  .
+docker push dobbs/farm:0.14.0-frame
+```