Update readme to use make_skia.sh

README.md

diff --git a/README.md b/README.md
index 182848f..f4c232c 100644
--- a/README.md
+++ b/README.md
@@ -19,6 +19,16 @@
 
 If you've put the `premake5` executable in the `rive-cpp/build` folder, you can run it with `PATH=.:$PATH ./build.sh`
 
+## Building skia projects
+```
+cd skia/dependencies
+./make_skia.sh      // this will invoke get_skia.sh
+```
+To build viewer (plus you'll needed CMake installed)
+```
+./make_viewer_dependencies.sh
+```
+
 ## Testing
 Uses the [Catch2](https://github.com/catchorg/Catch2) testing framework.