docs: adding transpiler tasks to CONTRIBUTING.md [skip ci]

Author: YushaArif99

CONTRIBUTING.md

@@ -14,7 +14,7 @@ Please, follow the next process when you work on your subtask:
      - is not mentioned in the comments.
 
    Currently, there are three open tasks:
-
+   - [Transpiler](https://github.com/ivy-llc/ivy/issues?q=is%3Aopen+is%3Aissue+label%3ATranspiler)
    - [Frontend APIs](https://docs.ivy.dev/overview/contributing/open_tasks.html#frontend-apis)
    - [Ivy Experimental API](https://docs.ivy.dev/overview/contributing/open_tasks.html#ivy-experimental-api)