readme and providers update

README.md

@@ -0,0 +1,31 @@
+### TextBelt
+TextBelt is a texting API that uses carrier-specific gateways to deliver your text messages for free.  This is nice for a low-cost texting app or testing without running down your Twilio balance.
+
+Usage is dead simple:
+
+```
+$ curl http://textbelt.com/text \
+   -d number=5551234567 \
+   -d "message=I sent this message for free with textbelt.com"
+```
+
+### Success and Failure
+Sample success:
+
+```
+{"success":true}
+```
+
+Sample failure:
+
+```
+{"success":false,"message":"Exceeded quota for this phone number."}
+```
+
+### Notes and Limitations
+
+ *  IP addresses are limited to 75 texts per day.  Phone numbers are limited to 3 texts every 3 minutes.  If you need increased limits, please contact admin@textbelt.com.
+
+ *  Some carriers may deliver text messages from "txt@textbelt.com"
+
+ *  We support the following U.S. providers: Alltel, Ameritech, AT&T Wireless, Boost, CellularOne, Cingular, Edge Wireless, Sprint PCS, Telus Mobility, T-Mobile, Metro PCS, Nextel, O2, Orange, Qwest, Rogers Wireless, US Cellular, Verizon, Virgin Mobile.

providers.js

@@ -16,7 +16,7 @@ module.exports = {
     '%s@qwestmp.com',
     '%s@pcs.rogers.com',
     '%s@msg.telus.com',
-    //'%s@email.uscc.net',
+    '%s@email.uscc.net',
     '%s@vtext.com',
     '%s@vmobl.com',
   ],