README: describe how to display the examples in a dev environment

The file contains instruction to
- setup the http server and
- open the related url

to have examples displayed in one's dev environment.

example/stocks/README

@@ -0,0 +1,21 @@
+How to display the examples in your environment
+-----------------------------------------------
+First you need an http-server, that you can obtain with
+
+% npm install -g http-server
+
+Then you need to execute that server, on the directory
+where you cloned angular-dc.
+
+If you did it in /home/me/github_repos/, and thus you have
+the angular-dc project in
+
+ /home/me/github_repos/angular-dc
+
+Execute
+
+% cd /home/me/github_repos
+% http-server
+
+Finally, you just need to open the related url, like for example
+ http://localhost:8080/angular-dc/example/stocks/nasdaq.html