format readme

Author: tinhour

README.md

@@ -1,4 +1,11 @@
-# nodeMemoryDB #
-## npm install nodeMemoryDB ##
-###t his is a simple memory DB service build in nodejs ###
-### after install,then input npm run start ,this will run listen 81 port ,start a server as a memory DB. ###
+# nodeMemoryDB
+## npm install nodeMemoryDB 
+this is a simple memory DB service build in nodejs 
+after install,then input 
+## npm run start
+,this will run listen 81 port ,start a server as a memory DB. 
+
+```javascript
+npm install nodeMemoryDB 
+npm run start
+```