Add Perl6 to languages.yml

lib/linguist/languages.yml

@@ -1150,14 +1150,30 @@ Perl:
   primary_extension: .pl
   extensions:
   - .PL
-  - .nqp
   - .perl
   - .ph
   - .plx
-  - .pm6
+  - .pm
   - .pod
   - .psgi
 
+Perl6:
+  type: programming
+  color: "#0298c3"
+  primary_extension: .p6
+  extensions:
+  - .6pl
+  - .6pm
+  - .nqp
+  - .p6l
+  - .p6m
+  - .pl
+  - .pl6
+  - .pl6
+  - .pm
+  - .pm6
+  - .pm6
+
 Pike:
   type: programming
   color: "#066ab2"