Merge pull request #2037 from rovinski/master

Update docs with proper Yosys version

Author: maliberty

docs/user/BuildWithPrebuilt.md

@@ -5,7 +5,7 @@ Please ensure the Klayout version (denoted with `klayoutVersion` variable) is co
 
 Instructions for installing:
 - [Klayout>=0.28.8](https://www.klayout.de/build.html)
-- [Yosys>=0.21](https://github.com/YosysHQ/oss-cad-suite-build/blob/master/README.md#installation)
+- [Yosys>=0.39](https://github.com/YosysHQ/oss-cad-suite-build/blob/master/README.md#installation)
 
 ```{tip} Unfortunately KLayout maintainers do not provide Debian 10/11 compatible packages. You can follow the build-from-sources instruction (Version >=0.25) and Ubuntu 22 instructions [here](https://www.klayout.de/build.html#:~:text=Building%20KLayout%20on%20Linux%20(Version%20%3E%3D%200.25)). 
 ```