Document /v1/user/me endpoint

Author: MadLittleMods

02.Authentication.md

@@ -73,7 +73,7 @@ However, you can also specify the JSON content type using the `Accept` header.
 
     Accept: application/json
     {"access_token":[omitted], "scope":"flow,private", "token_type":"bearer"}
-    
+
 ### Testing OAuth2 exchange using curl:
 
 You can obtain a token using the command:
@@ -100,3 +100,39 @@ The access token allows you to make requests to the API on behalf of a user.
     GET https://api.gitter.im/v1/user
     Authorization: Bearer OAUTH-TOKEN
     Host: api.gitter.im
+
+
+## Check who you are authenticated as
+
+### Parameters
+
+ - *none*
+
+```
+GET /v1/user/me
+```
+
+Try it from the CLI:
+```
+'demo api-access';
+{
+  "verb": "get",
+  "resource": "{{api_url}}/v1/user/me"
+}
+```
+
+```
+{
+  "id": "553d437215522ed4b3df8c50",
+  "username": "MadLittleMods",
+  "displayName": "Eric Eastwood",
+  "url": "/MadLittleMods",
+  "avatarUrl": "https://avatars-05.gitter.im/gh/uv/3/MadLittleMods",
+  "staff": true,
+  "providers": [
+    "github"
+  ],
+  "v": 8,
+  "gv": "3"
+}
+```