docs: add README to cli.angular.io microsite

Author: hansl

etc/cli.angular.io/README.md

@@ -0,0 +1,14 @@
+
+# Angular CLI microsite
+
+This folder contains all the static files used for the Angular CLI microsite
+(http://cli.angular.io).
+
+To make changes on the frontend, just update the files here, and ask the
+caretaker to deploy the new site when the commit is merged. Your commit should
+be of scope `docs:` (**NOT** `fix` or `feat`).
+
+## Deploy
+
+To deploy, use your firebase credentials to login, then use `firebase deploy`
+from this folder. There is currently no build step.

etc/cli.angular.io/firebase.json

@@ -3,6 +3,7 @@
     "public": "",
     "ignore": [
       "firebase.json",
+      "README.md",
       "**/.*"
     ],
     "rewrites": [