Mark FindInMap enhancement as complete (#108)

README.md

@@ -8,7 +8,7 @@ Go to: [What is an RFC](#what-is-an-rfc) | [RFC Process](#rfc-process)
 <!--BEGIN_TABLE-->
 \#|Title|Owner|Status|
 ---|-----|-----|------|
-[43](https://github.com/aws-cloudformation/cfn-language-discussion/issues/43),[73](https://github.com/aws-cloudformation/cfn-language-discussion/issues/73),[79](https://github.com/aws-cloudformation/cfn-language-discussion/issues/79)|[Fn::FindInMap enhancements (default value and intrinsic fns)](https://github.com/aws-cloudformation/cfn-language-discussion/pull/91)|[@mingxingong](https://github.com/mingxingong)|✍️ review
+[43](https://github.com/aws-cloudformation/cfn-language-discussion/issues/43),[73](https://github.com/aws-cloudformation/cfn-language-discussion/issues/73),[79](https://github.com/aws-cloudformation/cfn-language-discussion/issues/79)|[Fn::FindInMap enhancements (default value and intrinsic fns)](https://github.com/aws-cloudformation/cfn-language-discussion/pull/91)|[@mingxingong](https://github.com/mingxingong)|✅ done ([docs](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/intrinsic-function-reference-findinmap-enhancements.html))
 [80](https://github.com/aws-cloudformation/cfn-language-discussion/issues/80)|[Add RFC for Fn::NumberComparison](https://github.com/aws-cloudformation/cfn-language-discussion/pull/90)|[@mingxingong](https://github.com/mingxingong)|✍️ review
 [9](https://github.com/aws-cloudformation/cfn-language-discussion/issues/9)|[Adding looping functionality in CFN Template](https://github.com/aws-cloudformation/cfn-language-discussion/pull/75)|[@MalikAtalla-AWS](https://github.com/MalikAtalla-AWS)|✍️ review
 [14](https://github.com/aws-cloudformation/cfn-language-discussion/issues/14)|[Convert Template Block to JSON String](https://github.com/aws-cloudformation/cfn-language-discussion/pull/76)|[@mluk-aws](https://github.com/mluk-aws)|✅ done ([docs](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/intrinsic-function-reference-ToJsonString.html))