Updated README.md

Author: alfonsof

awslambdas3event/README.md

@@ -18,7 +18,7 @@ It handles an AWS Lambda function that sends information to the log about an obj
 
 * Create an AWS lambda function.
  * Name: `<LAMBDA_NAME>`
- * Runtime: `Python 3.6`
+ * Runtime: `Python 3.8`
  * Handler: `lambda_function.lambda_handler`
  * Role: `lambda-basic-execution`
  * The triggers: