Grammatically updated the express documentation for better comprehension

[REALSTEVEIG]

Adding Js to node just makes it easier for newbies to comprehend the docs.
I suggest the entire docs replaces Nodejs to Node.js.

[srkds]

Hi,
I think it would be better to change NodeJs to Node.js
as the whole README.md file is following the Node.js style

[dougwilson]

Hi @REALSTEVEIG are you planning to update the pr contents with the above agreement?

[REALSTEVEIG]

I don't understand your question.

[dougwilson]

Sorry! So above, someone suggested you write it as Node.js instead of NodeJS. You agreed. I was wondering if you were planning to update the pr to use that.

[REALSTEVEIG]

Oh, I will do just that..