Merge pull request #36 from allegro/release-1.8.1

Bumped version to 1.8.1
Create README.md
Update README.md
Update README.md
added divider
fixed style
added dropdown
after review
Merge pull request #38 from ar4s/improvments/fixed-style

Improvments/fixed style
Create Makefile
Bumped version to 1.9.0
Merge pull request #39 from allegro/release-1.9.0

Release 1.9.0