update readme

.travis.yml

@@ -7,6 +7,7 @@ os:
 matrix:
   fast_finish: true
 sudo: true
+dist: trusty
 addons:
   apt:
     update: true

README.md

@@ -1,7 +1,7 @@
 screenshot
 ==========
 
-Screenshot-capturing utility. Selection isn't fully implemented, so it's disabled for now.
+Screenshot-capturing utility.
 
 Bindings for `slop` have been generated by `bindgen`.
 
@@ -16,6 +16,15 @@ Make sure you have cargo installed. Then run
 cargo install --git https://github.com/iptq/screenshot
 ```
 
+Example Integration
+-------------------
+
+```bash
+#!/bin/bash
+SCREENSHOT=$HOME/.cargo/bin/screenshot
+$SCREENSHOT $1 --clip --output "$HOME/Screenshots/Screenshot_%Y%m%d-%H:%M:%S.png"
+```
+
 Building from Source
 --------------------