numbers: Create numbers module

README.md

@@ -68,6 +68,10 @@ solution.
 
     Internal state of a parser
 
+  - [ParserState](src/Parser/ParserState.md)
+
+    Parsers for numerical values in multiple bases
+
 ## Index of years and days
 
 - 2015

advent.ipkg

@@ -32,6 +32,7 @@ modules = Runner
         , Array
         , Parser
         , Parser.Interface
+        , Parser.Numbers
 
 -- main file (i.e. file to load at REPL)
 main = Main

src/Parser/Numbers.md

@@ -0,0 +1,5 @@
+# Numerical Parsers
+
+```idris
+module Parser.Numbers
+```