Update readme for 0.13 (#666)
Update readme for 0.13 (#666)

* readme update v1

* fix formatting

* fix more formatting

* Update README.md

Co-authored-by: Alexei Lozovsky <7b9769c9c63db7b456a556857e9f88090ee9c9a2@cossacklabs.com>

* Apply suggestions from code review

Co-authored-by: Alexei Lozovsky <7b9769c9c63db7b456a556857e9f88090ee9c9a2@cossacklabs.com>

Co-authored-by: Alexei Lozovsky <7b9769c9c63db7b456a556857e9f88090ee9c9a2@cossacklabs.com>
cossacklabs/themis,cossacklabs/themis,cossacklabs/themis,cossacklabs/themis,cossacklabs/themis,cossacklabs/themis,cossacklabs/themis,cossacklabs/themis,cossacklabs/themis,cossacklabs/themis,cossacklabs/themis,cossacklabs/themis,cossacklabs/themis