Add installation docs

Author: HR

README.md

@@ -9,23 +9,31 @@ The GitHub API imposes a [rate limiting](https://developer.github.com/v3/#rate-l
 To clone private repositories you need to supply an _OAuth token_ for an account with access to the private repository (to get one see https://help.github.com/en/articles/creating-a-personal-access-token-for-the-command-line).
 
 # Installation
-
+Install the script via the `pip`:
+```
+pip install -e git+git://github.com/HR/github-clone#egg=ghclone
+```
+or via `pipsi`:
+```
+pipsi install -e git+git://github.com/HR/github-clone#egg=ghclone
+```
+Uses Python 3.3+
 
 # Usage
 ```
 GitHub clone (git.io/ghclone)
 
 Usage:
-  ghclone.py <url> [-t | --token=<token>]
-  ghclone.py (-h | --help)
-  ghclone.py (-v | --version)
+  ghclone <url> [-t | --token=<token>]
+  ghclone (-h | --help)
+  ghclone (-v | --version)
 
 Examples:
-  ghclone.py https://github.com/HR/Crypter/tree/master/app
-  ghclone.py https://github.com/HR/Crypter/tree/dev/app
-  ghclone.py https://github.com/HR/Crypter/tree/v3.1.0/build
-  ghclone.py https://github.com/HR/Crypter/tree/cbee54dd720bb8aaa3a2111fcec667ca5f700510/build
-  ghclone.py https://github.com/HR/Picturesque/tree/master/app/src -t li50d67757gm20556d53f08126215725a698560b
+  ghclone https://github.com/HR/Crypter/tree/master/app
+  ghclone https://github.com/HR/Crypter/tree/dev/app
+  ghclone https://github.com/HR/Crypter/tree/v3.1.0/build
+  ghclone https://github.com/HR/Crypter/tree/cbee54dd720bb8aaa3a2111fcec667ca5f700510/build
+  ghclone https://github.com/HR/Picturesque/tree/master/app/src -t li50d67757gm20556d53f08126215725a698560b
 
 Options:
   -h --help           Show this screen.

ghclone.py

@@ -4,16 +4,16 @@
 GitHub clone (git.io/ghclone)
 
 Usage:
-  ghclone.py <url> [-t | --token=<token>]
-  ghclone.py (-h | --help)
-  ghclone.py (-v | --version)
+  ghclone <url> [-t | --token=<token>]
+  ghclone (-h | --help)
+  ghclone (-v | --version)
 
 Examples:
-  ghclone.py https://github.com/HR/Crypter/tree/master/app
-  ghclone.py https://github.com/HR/Crypter/tree/dev/app
-  ghclone.py https://github.com/HR/Crypter/tree/v3.1.0/build
-  ghclone.py https://github.com/HR/Crypter/tree/cbee54dd720bb8aaa3a2111fcec667ca5f700510/build
-  ghclone.py https://github.com/HR/Picturesque/tree/master/app/src -t li50d67757gm20556d53f08126215725a698560b
+  ghclone https://github.com/HR/Crypter/tree/master/app
+  ghclone https://github.com/HR/Crypter/tree/dev/app
+  ghclone https://github.com/HR/Crypter/tree/v3.1.0/build
+  ghclone https://github.com/HR/Crypter/tree/cbee54dd720bb8aaa3a2111fcec667ca5f700510/build
+  ghclone https://github.com/HR/Picturesque/tree/master/app/src -t li50d67757gm20556d53f08126215725a698560b
 
 Options:
   -h --help           Show this screen.