Add a note about depot_tools to the `led` step (#96830)
diff --git a/dev/bots/README.md b/dev/bots/README.md
index 59ebf6d..20e8102 100644
--- a/dev/bots/README.md
+++ b/dev/bots/README.md
@@ -95,6 +95,7 @@
4. Run `led get-builder 'luci.flutter.prod:BUILDER_NAME' | led edit -p 'revision="GIT_HASH"' | led edit-recipe-bundle | led launch`, where `BUILDER_NAME` is the builder name (e.g. `Linux Engine`), and
`GIT_HASH` is the hash to build (which is important for the engine but not
for the framework).
+ * If `led` fails, ensure that your `depot_tools` checkout is up to date.
5. To submit a CL, you need a local branch first (`git checkout -b [some branch name]`).
6. Upload the patch (`git commit`, `git cl upload`), and open the outputted URL to the CL.
7. Use "Find owners" to get reviewers for the CL
