fix minor typos

Author: stmuk

doc/Language/mop.pod

@@ -199,7 +199,7 @@ as well. So if you write C<my $t = MyType; ... ; $t.^compose> you are
 composing the Scalar that the C<$>-sigiled variable implies, not C<MyType>.
 
 The consequence is that you need to have a rather detailed understanding of
-the subleties of Perl 6 in order to avoid pitfalls when working with the MOP,
+the subtleties of Perl 6 in order to avoid pitfalls when working with the MOP,
 and can't expect the same "do what I mean" convenience that ordinary Perl 6
 code offers.
 

doc/Language/operators.pod

@@ -546,7 +546,7 @@ X<Hyper method call operator>. Will call a method on all elements of a C<List> o
     my @b = @a».ord;                  # [97, 98, 99]
     sub foo(Str:D $c){ $c.ord * 2 };  # The first parameter of a method is the invocant.
     say @a».&foo;                     # So we can pretend to have a method call with a sub that got a good first positional argument.
-    say @a».&({ .ord});               # Blocks have an implicit positional arguments that lands in $_. The latter can be obmitted for method calls.
+    say @a».&({ .ord});               # Blocks have an implicit positional arguments that lands in $_. The latter can be omitted for method calls.
 
 =head2 X«postfix C<.postfix>
     |postfix,.postfix;postcircumfix,.( );postcircumfix,.[ ];postcircumfix,.{ };postcircumfix,.< >»

doc/Type/IO/Special.pod

@@ -31,7 +31,7 @@ This returns a string which identifies the object.
 
     method Str(IO::Special:D:)
 
-This returns '<STDIN>', '<STDOUT>' or '<STDERR>' as approriate.
+This returns '<STDIN>', '<STDOUT>' or '<STDERR>' as appropriate.
 
 =head2 method IO