Update src/EFCore.Design/Properties/DesignStrings.resx

Co-authored-by: Andriy Svyryd <AndriySvyryd@users.noreply.github.com>

Author: kawasaniac

src/EFCore.Design/Properties/DesignStrings.resx

@@ -157,7 +157,7 @@
     <value>A compilation must be loaded.</value>
   </data>
   <data name="CompiledModelBackingFieldNotFound" xml:space="preserve">
-    <value>Backing field for property '{entityType}.{propertyName}' could not be inferred. Use a matching field name or configure with HasField().</value>
+    <value>Backing field for property '{entityType}.{propertyName}' could not be inferred. Use a matching field name or configure with 'HasField()'.</value>
   </data>
   <data name="CompiledModelConstructorBinding" xml:space="preserve">
     <value>The entity type '{entityType}' has a custom constructor binding. Compiled model can't be generated, because custom constructor bindings are not supported. Configure the custom constructor binding in '{customize}' in a partial '{className}' class instead.</value>