Added one HTML/CSS and two Django resources.

[PragatiVerma18]

I have added one HTML CSS resource by "Interneting Is Hard" and two Django resources - one by Django Girls Tutorials and another is a medium article by Quick Code.

By submitting this pull request I confirm I've read and complied with the below requirements.

Failure to properly do so will just result in the pull request being closed and everyone's time wasted.

• [x] I have read the Contribution guidelines and made sure my pull request follows it, specifically the part about promotions and markdown format.
• [x] Any resources I am adding in this PR have been used by me and I can personally vouch for their quality.
• [x] This pull request has a descriptive title. For example, Add [Resource Name] or Add [Topic Name], not Added new entries or update.
• [x] I have double-checked that I have only updated the minimum files that are required by this PR.

[PragatiVerma18]

Hi, @aviaryan!!! Hope you like the changes this time, do tell me if more changes are needed. Thanks.

[PragatiVerma18]

Hi, I have personally used each one of these courses myself, so I can assure you that these sources are trustworthy and reliable and can be recommended to beginners in the respective fields.

[aviaryan]

Thanks for the comment @PragatiVerma18. I very much appreciate it. As a final step, please include Django in the README so that it matches our requirements.

[PragatiVerma18]

Hi, @aviaryan!!! Thanks for the appreciation. I have added Django in the readme file, please have a look and tell me if any changes are needed.