diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
new file mode 100644
index 0000000..68dc239
--- /dev/null
+++ b/CONTRIBUTING.md
@@ -0,0 +1,11 @@
+# Issues
+Don’t forget to mention game version, which release or branch it came from.\
+Source port issues are handled in their respective repositories.
+
+# Pull request
+No source ports in main repository.\
+I have no way to test and maintain most of them.\
+The best I can do is to add a link.
+
+There is no guaranty that any particular PR will be accepted.\
+If you are unsure, ask first, make PR second.
diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -13,11 +13,12 @@ Supports data files from Windows and Full Tilt versions of the game.
 
 ## Known source ports
 
-| Platform        | Author | URL                                                                                                        |
-| --------------- | ------ | ---------------------------------------------------------------------------------------------------------- |
-| PS Vita         | Axiom  | <https://github.com/suicvne/SpaceCadetPinball_Vita>                                                        |
-| Emscripten      | alula  | <https://github.com/alula/SpaceCadetPinball> <br> Play online: <https://alula.github.io/SpaceCadetPinball> |
-| Nintendo Switch | averne | <https://github.com/averne/SpaceCadetPinball-NX>                                                           |
+| Platform        | Author    | URL                                                                                                        |
+| --------------- | --------- | ---------------------------------------------------------------------------------------------------------- |
+| PS Vita         | Axiom     | <https://github.com/suicvne/SpaceCadetPinball_Vita>                                                        |
+| Emscripten      | alula     | <https://github.com/alula/SpaceCadetPinball> <br> Play online: <https://alula.github.io/SpaceCadetPinball> |
+| Nintendo Switch | averne    | <https://github.com/averne/SpaceCadetPinball-NX>                                                           |
+| webOS TV        | mariotaku | <https://github.com/webosbrew/SpaceCadetPinball>                                                           |
 
 Platforms covered by this project: desktop Windows, Linux and macOS.