minimum required Woo version displayed on admin

admin/admin-tab-integrate.php

@@ -23,7 +23,8 @@
 				__(
 					'Choose this option if you would like to track e-commerce data using 
 					 %1$secommerce tracking%2$s.<br>
-					 Use the plugin\'s %3$sofficial guides%4$s to setup your Google Tag Manager container:<br/>',
+					 Use the plugin\'s %3$sofficial guides%4$s to setup your Google Tag Manager container:<br/>
+					 <strong>WooCommerce 5.0+ is required to use this integration</strong>',
 					'duracelltomi-google-tag-manager'
 				)
 			),

readme.txt

@@ -228,6 +228,7 @@ to report micro conversions and/or to serve ads only to visitors who spend more
 
 * Fix: Wrong ID parameter used tracking product variations (id instead of item_id). Thanks [micmaf](https://github.com/micmaf)
 * Fix: do not track add_to_cart in product lists when 'Select options' or 'View products' buttons are clicked
+* Added: minimum required WooCommerce version (currently 5.0+) is displayed now on GTM4WP admin
 
 = 1.20.1 =