added notes and removed float32 check

Author: matryer

README.md

@@ -2,3 +2,9 @@ parse
 =====
 
 String conversion
+
+```
+i := parse.String("123")
+log.Println("%T", i)
+// prints "int"
+```

parse.go

@@ -9,7 +9,7 @@ var TryFuncs = []TryFunc{
 	TryInt64,
 	TryUint32,
 	TryUint64,
-	TryFloat32,
+	//TryFloat32,
 	TryFloat64,
 	TryBool,
 }