Added some pod directives

Author: Jan-Olof Hendig

doc/Type/Supply.pod6

@@ -582,7 +582,7 @@ stocks. When they switch to a new one, a connection is established to a web sock
 to get the latest values, and any previous connection should be closed. Each stream
 of values coming over the web socket would be represented as a Supply, which
 themselves are emitted into a Supply of latest data sources to watch.
-The migrate method could be used to flatten this supply of supplies into a single
+The C<migrate> method could be used to flatten this supply of supplies into a single
 Supply of the current values that the user cares about.
 
 Here is a simple simulation of such a program:
@@ -617,7 +617,7 @@ sleep 3;
 
 Which produces output like:
 
-=begin code
+=begin code :skip-test
 Starting to watch GOOG
 GOOG: 111.67
 GOOG: 111.20