Converting remaining .html files into .md #108 batch 13 S09-S11-S12

[CodeFrite]

Hello,

Please find here, the next pull request (batch 13) for the subject: #108

It contains the following converted files:

S09-S11-S12 ./docs/S09-beyond-code/M4-spirit/index.html ./docs/S09-beyond-code/M3-continuing-ed/index.html ./docs/S09-beyond-code/M1-EIPs/index.html ./docs/S09-beyond-code/M2-ethics/index.html ./docs/S11-what-now/index.html ./docs/S12-final-project/index.html

I have compared them 1 by 1 against the course current layout : https://courses.consensys.net/courses/take/blockchain-developer-bootcamp-registration-2021.

. : Best Regards : .

CodeFrite