[android] updating information how to reference Android packages

README.md

@@ -34,11 +34,17 @@ Beside merging in platform specific SDKs, the following changes were made compar
                 ...
                 maven {
                     url = "https://maven.pkg.github.com/maptiler/maplibre-gl-native"
+                    credentials {
+                        username = "maptiler"
+                        password = "7316cac510384aaa7408b9feb49341a15ba68171"
+                    }
                 }
             }
         }
     ```
 
+> The credentials section is required because [GitHub does not support public access to maven package repository currently](https://github.community/t/download-from-github-package-registry-without-authentication/14407/63).
+
 2. Add the library as a dependency into your module build.gradle
 
     ```gradle