add dev-rygar

[dev-rygar]

Before submitting this pull request, please go through the checklist below.
If you're doing something in the checklist, put an x inside [ ] so that - [ ] becomes - [x]

• I have added a screenshot from browser with my changes
• There are no errors in the console
• I had fun going through this tutorial (ノ^o^)ノ and learned on the way ٩(＾◡＾)۶
• [x ] There are some things I'd like to improve in this tutorial. I have written them below.

I would like to note that "adding screenshot from browser with my changes" is not included in the instruction, also part of the instruction about editing "contributor.js" was part of the instruction but it was not instructed to include it at "git add contributors/.html" part.

Issue/concern:

• adding screenshot was not part of the instruction
• editing and adding my/your html file name at contributors.js was part of the process but not part of "git add"

reference for instructions: https://github.com/Roshanjossey/code-contributions/blob/main/docs/CONTRIBUTING.md