Merge pull request #4 from ButterflyNetwork/alpha

Better git log search.

README.md

@@ -4,6 +4,8 @@
 
 An orb for detecting git submodule changes.
 
+See the module in practice at: [monorepo-deploy](https://github.com/ButterflyNetwork/monorepo-deploy).
+
 ---
 
 ## Resources

src/scripts/create-parameters.py

@@ -13,7 +13,7 @@ def submodules_count():
 
 def changed_submodules():
   raw_changes = subprocess.run(
-    ['git', 'log', '-p', '--first-parent', '--merges', '-1'],
+    ['git', 'log', '-p', '--submodule=log', '--first-parent', '--merges', '-1'],
     check=True,
     capture_output=True
   ).stdout.decode('utf-8').splitlines()