update readme

Author: bitkarrot

README.md

@@ -1,7 +1,16 @@
 <h1>Decoder extension</h1>
-<h2>*Work In Progress*</h2>
+
 This is an extension to help decode invoices, lnurls and lightning addresses in LNBits
 
+## Example Usage
+
+Decode a BOLT11 invoice
+
+Decode a LNURL
+
+Decode a Lightning Address
+
+
 ## Get Started 
 
 Mininum poetry version has is ^1.2, but it is recommended to use latest poetry. (including OSX)