Merge pull request #2224 from sarna/ruby-typos

Fixes some small typos in "Ruby to Perl 6"

Author: sarna

doc/Language/rb-nutshell.pod6

@@ -1057,7 +1057,7 @@ use lib '/some/module/lib';
 In Ruby there is no built-in way to selectively import/export methods from a
 module.
 
-In Perl 6 you specifies the functions which are to be exported by using the
+In Perl 6 you specify the functions which are to be exported by using the
 C<is export> role on the relevant subs and I<all> subs with this role are
 then exported. Hence, the following module C<Bar> exports the subs C<foo>
 and C<bar> but not C<baz>:
@@ -1071,14 +1071,14 @@ sub bar($b) is export { say "bar $b" }
 sub baz($z) { say "baz $z" }
 
 To use this module, simply C<use Bar> and the functions C<foo> and C<bar>
-will be available
+will be available:
 
 =for code :skip-test
 use Bar;
 foo(1);    #=> "foo 1"
 bar(2);    #=> "bar 2"
 
-If you tries to use C<baz> an "Undeclared routine" error is raised at compile time.
+If you try to use C<baz> an "Undeclared routine" error is raised at compile time.
 
 Some modules allow for selectively importing functions, which would look like: