diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 792d600..ce09879 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -1 +1,10 @@
-#
+# Adding language files
+1. Copy the English language files from 
+```
+./attacks/Handshake Snooper/language/en.sh
+./attacks/Captive Portal/language/en.sh
+./language/en.sh
+```
+2. Translate
+3. Save them as `LANGUAGE_CODE.sh` to respective locations.
+Resource: [LANGUAGE_CODE](https://en.wikipedia.org/wiki/List_of_ISO_639-1_codes) (ISO 639-1)