Added comments for settings

Author: rogyar

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

@@ -31,14 +31,16 @@
                 </field>
             </group>
             <group id="media_configuration" translate="label" type="text" sortOrder="1000" showInDefault="1" showInWebsite="1" showInStore="1">
-                <label>Images Configuration</label>
-                <field id="max_width" translate="label" type="text" sortOrder="100" showInDefault="1" showInWebsite="0" showInStore="0" canRestore="1">
-                    <label>Max width</label>
+                <label>Images Upload</label>
+                <field id="max_width" translate="label comment" type="text" sortOrder="100" showInDefault="1" showInWebsite="0" showInStore="0" canRestore="1">
+                    <label>Max Width</label>
                     <validate>validate-zero-or-greater validate-digits</validate>
+                    <comment>Max allowed width for uploaded image.</comment>
                 </field>
-                <field id="max_height" translate="label" type="text" sortOrder="200" showInDefault="1" showInWebsite="0" showInStore="0" canRestore="1">
-                    <label>Max height</label>
+                <field id="max_height" translate="label comment" type="text" sortOrder="200" showInDefault="1" showInWebsite="0" showInStore="0" canRestore="1">
+                    <label>Max Height</label>
                     <validate>validate-zero-or-greater validate-digits</validate>
+                    <comment>Max allowed height for uploaded image.</comment>
                 </field>
             </group>
         </section>