cmd/golangorg: update README

Make the README cover local non-production mode too,
update file name to match, and convert to markdown.

Change-Id: I7e3c86bf4ae2a3aeaed2dd2e3134747a275a006b
Reviewed-on: https://go-review.googlesource.com/c/website/+/207438
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
diff --git a/cmd/golangorg/README.golangorg-app b/cmd/golangorg/README.golangorg-app
deleted file mode 100644
index c1523af..0000000
--- a/cmd/golangorg/README.golangorg-app
+++ /dev/null
@@ -1,94 +0,0 @@
-godoc on Google App Engine
-==========================
-
-Prerequisites
--------------
-
-* Google Cloud SDK
-  https://cloud.google.com/sdk/
-
-* Redis
-
-* Go sources under $GOROOT
-
-* Godoc sources inside $GOPATH
-  (go get -d golang.org/x/website/cmd/golangorg)
-
-
-Running locally, in production mode
------------------------------------
-
-Build the app:
-
-  go build -tags golangorg
-
-Run the app:
-
-  ./golangorg
-
-godoc should come up at http://localhost:8080
-
-Use the PORT environment variable to change the port:
-
-    PORT=8081 ./golangorg
-
-Running locally, in production mode, using Docker
--------------------------------------------------
-
-Build the app's Docker container:
-
-  make docker-build
-
-Make sure redis is running on port 6379:
-
-  $ echo PING | nc localhost 6379
-  +PONG
-  ^C
-
-Run the datastore emulator:
-
-  gcloud beta emulators datastore start --project golang-org
-
-In another terminal window, run the container:
-
-  $(gcloud beta emulators datastore env-init)
-
-  docker run --rm \
-    --net host \
-    --env GODOC_REDIS_ADDR=localhost:6379 \
-    --env DATASTORE_EMULATOR_HOST=$DATASTORE_EMULATOR_HOST \
-    --env DATASTORE_PROJECT_ID=$DATASTORE_PROJECT_ID \
-    gcr.io/golang-org/godoc
-
-godoc should come up at http://localhost:8080
-
-
-Deploying to golang.org
------------------------
-
-Make sure you're signed in to gcloud:
-
-  gcloud auth login
-
-Build the image, push it to gcr.io, and deploy to Flex:
-
-  make cloud-build deploy
-
-Point the load balancer to the newly deployed version:
-(This also runs regression tests)
-
-  make publish
-
-Stop and/or delete down any very old versions. (Stopped versions can be re-started.)
-Keep at least one older verson to roll back to, just in case.
-You can also migrate traffic to the new version via this UI.
-
-  https://console.cloud.google.com/appengine/versions?project=golang-org&serviceId=default&versionssize=50
-
-
-Troubleshooting
----------------
-
-Ensure the Cloud SDK is on your PATH and you have the app-engine-go component
-installed (gcloud components install app-engine-go) and your components are
-up-to-date (gcloud components update)
diff --git a/cmd/golangorg/README.md b/cmd/golangorg/README.md
new file mode 100644
index 0000000..1774424
--- /dev/null
+++ b/cmd/golangorg/README.md
@@ -0,0 +1,83 @@
+# Running golangorg
+
+## Local Development
+
+For local development, simply build and run. It serves on localhost:6060.
+
+	go run .
+
+## Local Production Mode
+
+To run in production mode locally, you need:
+
+  * the Google Cloud SDK; see https://cloud.google.com/sdk/
+  * Redis
+  * Go sources under $GOROOT
+  * Godoc sources inside $GOPATH
+    (`go get -d golang.org/x/website/cmd/golangorg`)
+
+Build with the `golangorg` tag and run:
+
+	go build -tags golangorg
+	./golangorg
+
+In production mode it serves on localhost:8080 (not 6060).
+The port is controlled by $PORT, as in:
+
+	PORT=8081 ./golangorg
+
+## Local Production Mode using Docker
+
+To run in production mode locally using Docker, build the app's Docker container:
+
+	make docker-build
+
+Make sure redis is running on port 6379:
+
+	$ echo PING | nc localhost 6379
+	+PONG
+	^C
+
+Run the datastore emulator:
+
+	gcloud beta emulators datastore start --project golang-org
+
+In another terminal window, run the container:
+
+	$(gcloud beta emulators datastore env-init)
+
+	docker run --rm \
+		--net host \
+		--env GODOC_REDIS_ADDR=localhost:6379 \
+		--env DATASTORE_EMULATOR_HOST=$DATASTORE_EMULATOR_HOST \
+		--env DATASTORE_PROJECT_ID=$DATASTORE_PROJECT_ID \
+		gcr.io/golang-org/godoc
+
+It serves on localhost:8080.
+
+## Deploying to golang.org
+
+Make sure you're signed in to gcloud:
+
+	gcloud auth login
+
+Build the image, push it to gcr.io, and deploy to Flex:
+
+	make cloud-build deploy
+
+Point the load balancer to the newly deployed version:
+(This also runs regression tests)
+
+	make publish
+
+Stop and/or delete down any very old versions. (Stopped versions can be re-started.)
+Keep at least one older verson to roll back to, just in case.
+You can also migrate traffic to the new version via this UI.
+
+	https://console.cloud.google.com/appengine/versions?project=golang-org&serviceId=default&versionssize=50
+
+## Troubleshooting
+
+Ensure the Cloud SDK is on your PATH and you have the app-engine-go component
+installed (`gcloud components install app-engine-go`) and your components are
+up-to-date (`gcloud components update`)
diff --git a/content/README.md b/content/README.md
index 05cd1be..66741d0 100644
--- a/content/README.md
+++ b/content/README.md
@@ -28,7 +28,7 @@
 1) Make changes to an existing file such as `static/style.css`.
 
 2) If a new file is being added to the `static` directory, add it to the `files`
-slice in `static/gen`.
+slice in `static/gen.go`.
 
 3) Run `go generate golang.org/x/website/content/static` so `static/static.go` is
 up to date.