message: Update in README.md
diff: @@ -100,9 +100,11 @@ $ git checkout master
  Building Locally (Mac and Linux)
  ================================
  -To perform a local build you will need to run the build scripts in the `swig/` folder.
  +Building on Travis is something recommended only once you know you're done with your work as builds can take above 30 minutes to finish for all platforms and architectures.
  -If you're on macos you can use the `build-macos.sh`, running it without setting things up should tell you about certain environment variables you'll need to set up. To understand the build process we recommend you read `build-utils.shinc`
  +When you're developing and debugging you need faster builds, and these can be performed locally with the helpo of build scripts in the `swig/` folder.
  +
  +Thre's a build script for each operating system, If you're on macos you can use the `build-macos.sh`, running it without setting things up should tell you about certain environment variables you'll need to set up. To understand the build process we recommend you read [`build-utils.shinc`](https://github.com/frostwire/frostwire-jlibtorrent/blob/master/swig/build-utils.shinc)
  The hacking and building process might require you to run the `run-swig.sh` script, we usually need to run this script if there are C++ api changes in libtorrent that require adjustments in `libtorrent.i` or `libtorrent.h`, this script will create automatic JNI wrappers in the outer source java folders. You should not run this script unless you know what you're doing.
  