Add vendoring

Gopkg.toml

@@ -0,0 +1,50 @@
+# Gopkg.toml example
+#
+# Refer to https://github.com/golang/dep/blob/master/docs/Gopkg.toml.md
+# for detailed Gopkg.toml documentation.
+#
+# required = ["github.com/user/thing/cmd/thing"]
+# ignored = ["github.com/user/project/pkgX", "bitbucket.org/user/project/pkgA/pkgY"]
+#
+# [[constraint]]
+#   name = "github.com/user/project"
+#   version = "1.0.0"
+#
+# [[constraint]]
+#   name = "github.com/user/project2"
+#   branch = "dev"
+#   source = "github.com/myfork/project2"
+#
+# [[override]]
+#   name = "github.com/x/y"
+#   version = "2.4.0"
+#
+# [prune]
+#   non-go = false
+#   go-tests = true
+#   unused-packages = true
+
+
+[[constraint]]
+  name = "github.com/spf13/cobra"
+  version = "0.0.1"
+
+[[constraint]]
+  name = "github.com/stretchr/testify"
+  version = "1.2.1"
+
+[[constraint]]
+  branch = "master"
+  name = "golang.org/x/net"
+
+[[constraint]]
+  branch = "master"
+  name = "golang.org/x/oauth2"
+
+[[constraint]]
+  branch = "master"
+  name = "google.golang.org/api"
+
+[prune]
+  go-tests = true
+  unused-packages = true

README.md

@@ -4,6 +4,11 @@ A small application to retrieve or verify google ID token
 
 [![Build Status](https://travis-ci.org/grepplabs/google-id-token.svg?branch=master)](https://travis-ci.org/grepplabs/google-id-token)
 
+
+### Requirements
+
+- gcloud Command-Line Tool to retrieve Application Default Credentials - [Installing Cloud SDK](https://cloud.google.com/sdk/downloads)
+
 ### Building
 
 	go build
@@ -29,7 +34,7 @@ A small application to retrieve or verify google ID token
       -t, --timeout int        Timeout in seconds (default 5)
 
 
-### Acquire new user credentials and oogle ID token
+### Acquire new user credentials and google ID token
 [Application Default Credentials](https://cloud.google.com/sdk/gcloud/reference/auth/application-default/login)
 
     gcloud auth application-default login