Update to bitstring extension

Author: garypolhill

extensions/bitstring-2.3.0.zip

@@ -36,9 +36,9 @@ Unlike NetLogo’s lists and strings, arrays are “mutable”. That means that
     codeName: "bitstring"
     shortDescription: "Provides bitstrings as datatypes and commands to operate on them"
     longDescription: """A bitstring extension for NetLogo. Bitstrings are strings of binary digits. This extension provides you with an implementation of bitstrings and a number of commands and reporters to operate on them."""
-    version: "2.1.0"
-    homepage: "https://github.com/garypolhill/netlogo-bitstring/blob/nl6/README.md"
-    downloadURL: "https://raw.githubusercontent.com/NetLogo/NetLogo-Libraries/6.1/extensions/bitstring-2.1.0.zip"
+    version: "2.3.0"
+    homepage: "https://github.com/garypolhill/netlogo-bitstring/"
+    downloadURL: "https://raw.githubusercontent.com/NetLogo/NetLogo-Libraries/6.1/extensions/bitstring-2.3.0.zip"
   }
   {
     name: "Case based reasoning"