message: Update README.md
  It's not
diff: @@ -7,7 +7,7 @@ An advanced version of this pattern was talked about by [Heitor Lessa](https://t
  * [Youtube Recording](https://www.youtube.com/watch?v=9IYpGTS7Jy0)
  * [Static Slides](https://d1.awsstatic.com/events/reinvent/2019/REPEAT_3_Serverless_architectural_patterns_and_best_practices_ARC307-R3.pdf)
  -Most of this code was borrowed from https://www.cdkworkshop.com
  +Most of this code was borrowed from https://cdkworkshop.com/.
  This is the most basic of implementations and would have to be hardened before production use. e.g. cognito added to the API Gateway
  