Update GML Marketplace title and adjust TOC structure for consistency

Author: Gamer-VII

Writerside/rw.tree

@@ -71,8 +71,8 @@
                     <toc-element topic="server-minecraft-linux.md"/>
                 </toc-element>
             </toc-element>
+            <toc-element topic="gml-marketplace.topic"/>
         </toc-element>
-        <toc-element topic="gml-marketplace.topic"/>
         <toc-element topic="gml-modules.topic">
             <toc-element topic="gml-module-guide.md">
                 <toc-element topic="gml-module-guide-backend.md"/>

Writerside/topics/gml-marketplace.topic

@@ -2,7 +2,7 @@
 <!DOCTYPE topic
         SYSTEM "https://resources.jetbrains.com/writerside/1.0/xhtml-entities.dtd">
 <topic id="gml-marketplace"
-       title="gml-marketplace"
+       title="Маркетплейс"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="https://resources.jetbrains.com/writerside/1.0/topic.v2.xsd">
     <section-starting-page>
         <title>Маркетплейс</title>