dashboard: add little note about deploying after changes
Change-Id: I435fb2e955e95d592bd4913e06b550590c7c1089
Reviewed-on: https://go-review.googlesource.com/c/build/+/177317
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
diff --git a/dashboard/README.md b/dashboard/README.md
index 075410d..90fa091 100644
--- a/dashboard/README.md
+++ b/dashboard/README.md
@@ -5,3 +5,13 @@
# golang.org/x/build/dashboard
Package dashboard contains shared configuration and logic used by various pieces of the Go continuous build system.
+
+## Deploying
+
+When adding or removing builders, or changing a builder's build policy
+(which repos/branches get tested), you need to deploy the
+`x/build/cmd/coordinator` binary. Additionally, you usually want to
+re-deploy the `x/build/app/appengine` code to update
+https://build.golang.org/. The latter is only for humans (forcing
+columns to show up and adding the little black dots on cells that
+aren't built), but doesn't affect what gets built.
