Merge pull request #124 from umihico/doc/memory-issue-tips

doc: note memory shortage possibility #102

Author: umihico

serverless.yml

@@ -13,6 +13,7 @@ provider:
 functions:
   demo:
     timeout: 60
+    # If you experience any errors such as Chrome crashing or not being available you might need to increase the storage available to your Lambda Function. See #102
     memorySize: 2048
     image:
       name: img