doc: explain how to run App Engine version locally
This should give contributors who are unfamiliar with Google App Engine
enough information to get started.
Change-Id: I028b31f283443b6d98e5a397c06ba1b46afe3ca3
Reviewed-on: https://go-review.googlesource.com/15653
Reviewed-by: Andrew Gerrand <adg@golang.org>
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 88dff59..9118830 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -18,6 +18,14 @@
General questions should go to the [golang-nuts mailing list](https://groups.google.com/group/golang-nuts) instead of the issue tracker.
The gophers there will answer or ask you to file an issue if you've tripped over a bug.
+## Running the App Engine version locally
+
+To view your changes while developing locally, install the
+[Go App Engine SDK](https://cloud.google.com/appengine/downloads?hl=en) and then:
+
+ $ cd $GOPATH/src/golang.org/x/tour
+ $ $SDK_PATH/dev_appserver.py .
+
## Contributing code
Please read the [Contribution Guidelines](https://golang.org/doc/contribute.html)
