message: Add libev-dev install depenendancy to readme
diff: @@ -52,6 +52,11 @@ Install libs required to build RocksDB package:
  sudo apt install clang libclang-dev llvm llvm-dev linux-kernel-headers
  ```
  +Install libs required to build light-node package:
  +```
  +sudo apt install libev-dev
  +```
  +
  Building
  --------
  