Added rise filter

[raphaklaus]

No description provided.

[raphaklaus]

There's an another pull request for this situation (#140). Feel free to close if necessary. :)

[raphaklaus]

Ok! Let me test it to see the diff.

[raphaklaus]

Looks fine! I've just fixed the radial-gradient without background property, and elevated the saturate value a bit. 😄

[una]

I'm not sure it needs so much saturation -- are you checking with the test page at http://localhost:3000/test/?

You first will need to add @import 'rise' to scss/cssgram.scss to get it on the list

[raphaklaus]

My apologies! I didn't see the test site. Well, I think it's hard to achieve the exact same result of Instagram filter. I've tried with linear and radial gradient together and get pretty decent output. But I don't wanna extend this PR. I'm committing changes as you recommended above.

[una]

Yeah you're definitely right -- but this looks great :) thank you for your time!