Use links when referencing other files in the repo

CONTRIBUTING.md

@@ -2,7 +2,8 @@
 
 ## Getting Started
 
-To get started follow `Building from source` section of the `README.md` file.
+To get started follow `Building from source` section of the [README](README.md)
+file.
 
 ## Testing changes
 
@@ -31,7 +32,7 @@ To update specific vendor package run manul manually:
 ## Running
 
 To build and start `unsee` from local branch see `Running` section of the
-`README.md` file.
+[README](README.md) file.
 
 When working with assets (templates, stylesheets and javascript files) `DEBUG`
 flag for make can be set, which will recompile binary assets in debug mode,

LICENSE.md

@@ -1,13 +0,0 @@
-Copyright (c) 2017, CloudFlare. All rights reserved.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.

README.md

@@ -31,8 +31,8 @@ To clone git repo and build the binary yourself run:
 
 `unsee` is configured via environment variables or command line flags.
 Environment variable `ALERTMANAGER_URI` or cli flag `-alertmanager.uri` is the
-only option required to run. See `Environment variables` section below for the
-full list of supported environment variables. Examples:
+only option required to run. See [Environment variables](#environment-variables)
+section below for the full list of supported environment variables. Examples:
 
     ALERTMANAGER_URI=https://alertmanager.example.com unsee
     unsee -alertmanager.uri https://alertmanager.example.com
@@ -255,3 +255,11 @@ This option can also be set using `-strip.labels` flag. Example:
     $ unsee -strip.labels "prometheus_instance alert_type"
 
 This variable is optional and default is not set (all labels will be shown).
+
+## Contributing
+
+Please see [CONTRIBUTING](/CONTRIBUTING.md) for details.
+
+## License
+
+Apache License 2.0, please see [LICENSE](/LICENSE).