GCF cloudbuild.yaml: clarify "dir" parameter (#3847)

Author: Ace Nassri

functions/ci_cd/cloudbuild.yaml

@@ -5,8 +5,8 @@ steps:
   # Run pip install and pytest in the same build step
   # (pip packages won't be preserved in future steps!)
   args: [-c, 'pip install -r requirements.txt', '&&', 'pytest']
-  dir: 'functions/autodeploy'
+  dir: 'function/dir/from/repo/root'
 - name: 'gcr.io/cloud-builders/gcloud'
-  args: ['functions', 'deploy', '[YOUR_DEPLOYED_FUNCTION_NAME]', '[YOUR_FUNCTION_TRIGGER]', '--runtime', '[YOUR_RUNTIME]', '--entry-point', '[YOUR_FUNCTION_NAME_IN_CODE]']
-  dir: 'functions/autodeploy'
-# [END functions_ci_cd_cloud_build]
+  args: ['functions', 'deploy', '[YOUR_DEPLOYED_FUNCTION_NAME]', '[YOUR_FUNCTION_TRIGGER]', '--runtime', 'python37', '--entry-point', '[YOUR_FUNCTION_NAME_IN_CODE]']
+  dir: 'function/dir/from/repo/root'
+# [END functions_ci_cd_cloud_build]