Merge pull request #2 from timehook/readme

Filled README.md

Author: martinezdelariva

README.md

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+# Timehook CLI client
+
+[![Build Status](https://travis-ci.org/timehook/cli-client.svg?branch=master)](https://travis-ci.org/timehook/cli-client)
+
+Timehook CLI client is a client implementation to use with [https://api.timehook.io](https://api.timehook.io)
+
+## Usage
+
+##### Compile on your own
+
+1. Download or clone the repo.
+2. Build executable `go build -o bin/timehook cmd/main/timehook.go`
+
+## Example
+
+Set up the api key as environment variable
+
+ export TIMEHOOK_KEY=__YOUR_KEY__
+
+
+With defaults: 
+
+ ./bin/timehook
+ 
+With custom values:
+
+ ./bin/timehook --delay 11 --url https://your-url.com body --body '{"bar" : "bar"}'
+  
+  
+For further info:
+ 
+ ./bin/timehook --help