Merge pull request #17 from szabgab/pl-is-perl

recognize pl files as perl

Author: MR-Addict

src/assets/config/languages.json

@@ -91,7 +91,7 @@
   },
   {
     "name": "perl",
-    "extensions": [".pm", ".t"]
+    "extensions": [".pl", ".pm", ".t"]
   },
   {
     "name": "php",