Set your GOPATH (to something like /home/user/mygo), and make sure it's a directory that exists. (Note: set this on your machine's environment, not in the go.bat file.)
Further commands that use go, dev_appserver.py, and appcfg.py all live in the google_appengine directory from the SDK. Make sure it's in your PATH.
Download dependencies by running: go get -d github.com/mjibson/goread/goapp. This will download goread and all of its dependencies, and will stick them in your GOPATH.
cd $GOPATH/src/github.com/mjibson/goread.
git checkout master (bug in go get).
Copy app.sample.yaml to app.yaml.
In the goapp folder, copy settings.go.dist to settings.go.
From the goread directory, start the app with dev_appserver.py app.yaml. (On Windows, you may need to do this instead: python C:\go_appengine\dev_appserver.py app.yaml.)