cleaned files by prefixing names with 'example' when not means to be used in other plugins aka not utils

plugins/wp_model_plugin/css/example_style.css

@@ -0,0 +1,7 @@
+.first_el_to_change {
+	border: 1px solid red;
+}
+#model_plugin_shortcode {
+	border: 1px solid blue;
+	padding: 10px;
+}