Improve the README a bit

Author: johan

README.md

@@ -1,7 +1,27 @@
 QuickJSON
 =========
 
-A QuickLook plugin to pretty-print (node.js style) JSON.
+A QuickLook plugin to pretty-print JSON in the terse comma-first style, e g:
+
+```json
+{ "name": "flux"
+, "description": "An application architecture based on a unidirectional data flow"
+, "version": "2.1.1"
+, "homepage": "http://facebook.github.io/flux/"
+, "repository":
+  { "type": "git"
+  , "url": "https://github.com/facebook/flux.git"
+  }
+, "authors":
+  [ "Facebook"
+  , "Jing Chen <[email protected]>"
+  , "Bill Fisher <[email protected]>"
+  , "Paul O'Shannessy <[email protected]>"
+  ]
+}
+```
+
+### Installing
 
 To install a pre-built version for osx 10.6+,
 download and unzip
@@ -10,8 +30,11 @@ into `/Library/QuickLook/` (to install system-globally),
 or into `~/Library/QuickLook/` (to install for yourself only).
 You may need to create this directory, if it does not exist.
 
-To get sweet copy/paste functionality while in QuickLook, also run
+To get sweet copy/paste functionality while in QuickLook, also run:
 
     defaults write com.apple.finder QLEnableTextSelection -bool true
 
-from a Terminal window.
+from a Terminal window,
+and to refresh installed plugins afterwards:
+
+    qlmanage -r