Update toolchain version, script, and `README.md`#96

Merged

MaxDesiatov merged 5 commits intomainfrom

toolchain-script-readme

Oct 21, 2020

Commits on Oct 7, 2020

Mention the `install-toolchain.sh` script in `README.md`
MaxDesiatov
authored

Commits on Oct 19, 2020

Update toolchain version, script, and `README.md`
MaxDesiatov
committed

Commits on Oct 20, 2020

Update example code in `README.md`
MaxDesiatov
authored

Commits on Oct 21, 2020