📝 docs: improve usage section

Signed-off-by: Gaël Jourdan-Weil <gjourdanweil@gmail.com>

Author: gaeljw

README.md

@@ -39,7 +39,10 @@ This will enable the project to access plugin files stored in Maven Central, htt
 
 ### Read & use a BOM
 
-There are different ways to use the plugin depending on your use case.
+There are 3 different ways to use the plugin depending on your use case:
+- `Bom.dependencies`: for usage in `dependencyOverrides` only
+- `Bom.apply`: for usage in `dependencyOverrides` and `libraryDependencies`
+- `Bom.read`: for custom usage
 
 #### Use it in `dependencyOverrides`  (`Bom.dependencies`)