Added list of various libs used in code

Author: meanmango

build/README.md

@@ -30,6 +30,7 @@ tasks you may wish to accomplish.
       1. [Build Image Targets](#build-image-targets)
       1. [Google Cloud Platform](#google-cloud-platform)
       1. [Minikube](#minikube)
+   1. [Built With](#built-with)      
 <!-- ToC end -->
 
 ## Building on Different Platforms
@@ -355,3 +356,12 @@ instead of `make shell` to start an interactive shell for development on Minikub
 #### `make minikube-transfer-image`
 Convenience target for transferring images into minikube.
 Use TAG to specify the image to transfer into minikube
+
+## Built With
+
+- [healthcheck](https://github.com/heptiolabs/healthcheck)
+- [errors](https://github.com/pkg/errors)
+- [pflag](https://github.com/spf13/pflag)
+- [viper](https://github.com/spf13/viper)
+- [grpc](https://godoc.org/google.golang.org/grpc)
+- [context](https://golang.org/pkg/context/)