docs: remove db step

[skip ci]

Author: remy

docs/running-your-own-jsbin.md

@@ -2,11 +2,10 @@
 
 JS Bin is a [Node](http://nodejs.org) project.
 
-Install in 3 simple steps:
+Install in 2 steps:
 
 1. Installing code
 2. Configuration
-3. Database
 
 For the simplest install process we recommend using Node with SQLite.
 
@@ -110,4 +109,4 @@ JS Bin has end-to-end tests. The tests can be found in `tests/e2e` folder.
 
 Running the tests (JS Bin has to be running on port http://localhost:3000): 
 
-    $ npm run e2e
+    $ npm run e2e