add readme

README.md

@@ -0,0 +1,20 @@
+[![Build Status](https://github.com/yeti-switch/sems-yeti/actions/workflows/build.yml/badge.svg)](https://github.com/yeti-switch/sems-yeti/actions/workflows/build.yml)
+[![Made in Ukraine](https://img.shields.io/badge/made_in-ukraine-ffd700.svg?labelColor=0057b7)](https://stand-with-ukraine.pp.ua)
+
+[![Stand With Ukraine](https://raw.githubusercontent.com/vshymanskyy/StandWithUkraine/main/banner-direct-team.svg)](https://stand-with-ukraine.pp.ua)
+
+# sems-external-libs
+
+sems-external-libs is a part of project [Yeti]
+
+provides development package with static binaries/headers for the following external libraries:
+
+* [Botan](https://github.com/randombit/botan)
+* [curl](https://github.com/curl/curl)
+* [spandsp](https://github.com/freeswitch/spandsp)
+* [libconfuse](https://github.com/libconfuse/libconfuse)
+* [libs3](https://github.com/bji/libs3)
+* [libsrtp](https://github.com/cisco/libsrtp)
+* [stunserver](https://github.com/jselbie/stunserver)
+
+[Yeti]:https://yeti-switch.org/