[Signature] Grammatical fixups.

Author: pmichaud

lib/Signature.pod

@@ -9,7 +9,7 @@ That is, it describes what and how many arguments you need to pass to it
 for invocation.
 
 Passing arguments to a signature I<binds> the arguments the parameters,
-and loosly speaken to the signature.
+and (loosely speaking) to the signature.
 
 =head1 Methods
 
@@ -31,6 +31,6 @@ the signature.
     method count(Signature:D:) returns Real:D
 
 Returns the maximal number of positional arguments which can be bound
-to the signature. Returns C<Inf> if there a positional parameter is slurpy.
+to the signature. Returns C<Inf> if there is a slurpy positional parameter.
 
 =end pod