Added some method to SharedSetting , modify readme.md

public static void setCommitWhenEditorChanged(boolean
commit_when_editor_changed) {
SharedSetting.commit_when_editor_changed = commit_when_editor_changed;
}

public static void setApplyWhenEditorChanged(boolean
apply_when_editor_changed) {
SharedSetting.apply_when_editor_changed = apply_when_editor_changed;
}