Update README.md

Author: mkonicek

README.md

@@ -4,15 +4,21 @@ This is a copy of [Boost](http://www.boost.org/) that is used to build React Nat
 
 You probably don't want to directly use this repository. Its sole purpose is to distribute the Boost code for building React Native.
 
-## To update
+## Upgrading Boost
 
-React Native build tools expect specific folder structure.
-Run this command to get a .tar.gz file and upload it to Releases.
+First, download a new version of Boost, e.g.: http://www.boost.org/users/history/version_1_63_0.html
+
+Then create a dummy commit and a git tag so you can create a new release.
+
+React Native build tools (Gradle) expect specific folder structure.
+Run this command to get a .tar.gz file:
 
 ```
 tar -cvzf boost_1_57_0.tar.gz boost_1_57_0/
 ```
 
+Then drag&drop the tar.gz file to the releases page.
+
 
 ## License