magento/adobe-stock-integration#1832: Rename renditions stores config fieldset and add comments - additional modifications

Author: joweecaquicla

app/code/Magento/MediaGalleryRenditions/etc/adminhtml/system.xml

@@ -13,12 +13,14 @@
                 <comment>Resize images to improve performance and decrease the file size. When you use an image from Media Gallery on the storefront, the smaller image is generated and placed instead of the original.
                     Changing these settings will update all generated images.</comment>
                 <field id="width" translate="label" type="text" sortOrder="10" showInDefault="1" showInWebsite="0" showInStore="0">
-                    <label>Max Width</label>
+                    <label>Maximum Width</label>
                     <validate>validate-zero-or-greater validate-digits</validate>
+                    <comment>Enter the maximum width of an image in pixels.</comment>
                 </field>
                 <field id="height" translate="label" type="text" sortOrder="20" showInDefault="1" showInWebsite="0" showInStore="0">
-                    <label>Max Height</label>
+                    <label>Maximum Height</label>
                     <validate>validate-zero-or-greater validate-digits</validate>
+                    <comment>Enter the maximum height of an image in pixels.</comment>
                 </field>
             </group>
         </section>