add reference to radio page in home page getting involved section

diff --git a/index.mdwn b/index.mdwn
index ab43fc86d95943a1b49e03fe04d6982ad378ef82..f7faf0725c997cdfddd0f862bb4e9705ba0cf4be 100644 (file)
--- a/index.mdwn
+++ b/index.mdwn
@@ -80,6 +80,9 @@ As we make progress, you can read about it in our [News](News) feed.
 We also hang out on IRC channel #altusmetrum on irc.oftc.net if you have
 questions that aren't answered here.
 
+Our main projects include radio links.  If you don't already have one, 
+getting an [Amateur Radio](./Radio) license would be a good thing to do!
+
 And if you just can't wait to show your support for our efforts, visit
 our [Cafe Press Logo Shop](http://cafepress.com/altusmetrum) or our
 [Printfection Logo Shop](http://printfection.com/altusmetrum) (we're trying