fix: add content to README (#122)

- reflect current day status

README.md

@@ -6,5 +6,17 @@
 Lambda Builders is a Python library to compile, build and package AWS Lambda functions for several runtimes & 
 frameworks.
 
-We are in the process of implementing this project . If you are a developer and interested in contributing, 
-read the [DESIGN DOCUMENT](./DESIGN.md) to understand how this works.
+Lambda Builders currently contains the following workflows
+
+* Java with Gradle
+* Java with Maven
+* Dotnet with amazon.lambda.tools
+* Python with Pip
+* Javascript with Npm
+* Ruby with Bundler
+* Go with Dep
+* Go with Mod
+
+Lambda Builders is the brains behind the `sam build` command from [AWS SAM CLI](https://github.com/awslabs/aws-sam-cli)
+
+If you are a developer and interested in contributing, read the [DESIGN DOCUMENT](./DESIGN.md) to understand how this works.