message: Update docs/linux_build.md
  LD_LIBRARY_PATH is changed relative to NSS_DIR
diff: @@ -106,7 +106,7 @@ sudo apt-get autoremove -y && sudo apt-get clean -y
  ```shell
  export NSS_DIR=$HOME/nss
  export NSPR_DIR=$HOME/nspr
  -export LD_LIBRARY_PATH=$HOME/dist/Debug/lib
  +export LD_LIBRARY_PATH=$NSS_DIR/../dist/Debug/lib
  ```
  5. Clone **NSS** and **NSPR**
  