update setup steps to comply with instructions

package.json will not be created without npm init and a --save is required to append the installed version of package onto the package.json

TROUBLESHOOTING.md

@@ -113,14 +113,10 @@ Install the latest node-sass
 npm install -ddd node-sass > npm.log 2> npm.err
 ```
 
-Note which version was installed by opening the `package.json` file with a text editor.
+Note which version was installed by running
 
-```json
-{
-  "name": "node-sass",
-  "version": "3.0.0",
-  "libsass": "3.2.0",
-}
+```sh
+npm ls node-sass
 ```
 
 If node-sass could not be installed successfully, please publish your `npm.log`
@@ -181,14 +177,10 @@ Install the latest node-sass
 npm install node-sass
 ```
 
-Note which version was installed by opening the `package.json` file with a text editor.
+Note which version was installed by running
 
-```json
-{
-  "name": "node-sass",
-  "version": "3.0.0",
-  "libsass": "3.2.0",
-}
+```sh
+npm ls node-sass
 ```
 
 If node-sass install successfully lets gather some basic installation infomation.