Add a note related to j2 helper script.

PiperOrigin-RevId: 451309322
google · May 27, 2022 · 5f3a163 · 5f3a163
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commit 5f3a163
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diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
@@ -44,6 +44,11 @@ review. We use GitHub pull requests for this purpose.
 - Running `j2` in the shell will show the available commands for J2CL
 development.
 
+**Note:** `j2` script is not ported for open-source development yet. However
+you can still test your contributions by running particular integration tests
+using `bazel test <target>`. You can also run `./build_test.sh CI` script to
+test againt full test suite available in the open-source repo.
+
 
 ### Working with the codebase