Added docs folder

Author: puf

library/library.iml

@@ -65,7 +65,6 @@
       <sourceFolder url="file://$MODULE_DIR$/src/androidTest/java" isTestSource="true" />
       <sourceFolder url="file://$MODULE_DIR$/src/androidTest/jni" isTestSource="true" />
       <sourceFolder url="file://$MODULE_DIR$/src/androidTest/rs" isTestSource="true" />
-      <excludeFolder url="file://$MODULE_DIR$/build/docs" />
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/assets" />
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/bundles" />
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/classes" />