diff --git a/writerside/c.list b/writerside/c.list
index c4c77a2..5fca6a6 100644
--- a/writerside/c.list
+++ b/writerside/c.list
@@ -3,4 +3,5 @@
         SYSTEM "https://resources.jetbrains.com/writerside/1.0/categories.dtd">
 <categories>
     <category id="wrs" name="Writerside documentation" order="1"/>
+    <category id="inf" name="Learn more" order="2"/>
 </categories>
\ No newline at end of file
diff --git a/writerside/topics/starter-topic.md b/writerside/topics/starter-topic.md
index 7fcb3d0..e06fd7a 100644
--- a/writerside/topics/starter-topic.md
+++ b/writerside/topics/starter-topic.md
@@ -1,78 +1,10 @@
-# About OMATH
+# Introduction
 
 Oranges's Math Library (omath) is a comprehensive, open-source library aimed at providing efficient, reliable, and versatile mathematical functions and algorithms. Developed primarily in C++, this library is designed to cater to a wide range of mathematical operations essential in scientific computing, engineering, and academic research.
 
-## Add new topics
-You can create empty topics, or choose a template for different types of content that contains some boilerplate structure to help you get started:
-
-![Create new topic options](new_topic_options.png){ width=290 }{border-effect=line}
-
-## Write content
-%product% supports two types of markup: Markdown and XML.
-When you create a new help article, you can choose between two topic types, but this doesn't mean you have to stick to a single format.
-You can author content in Markdown and extend it with semantic attributes or inject entire XML elements.
-
-## Inject XML
-For example, this is how you inject a procedure:
-
-<procedure title="Inject a procedure" id="inject-a-procedure">
-    <step>
-        <p>Start typing and select a procedure type from the completion suggestions:</p>
-        <img src="completion_procedure.png" alt="completion suggestions for procedure" border-effect="line"/>
-    </step>
-    <step>
-        <p>Press <shortcut>Tab</shortcut> or <shortcut>Enter</shortcut> to insert the markup.</p>
-    </step>
-</procedure>
-
-## Add interactive elements
-
-### Tabs
-To add switchable content, you can make use of tabs (inject them by starting to type `tab` on a new line):
-
-<tabs>
-    <tab title="Markdown">
-        <code-block lang="plain text">![Alt Text](new_topic_options.png){ width=450 }</code-block>
-    </tab>
-    <tab title="Semantic markup">
-        <code-block lang="xml">
-            <![CDATA[<img src="new_topic_options.png" alt="Alt text" width="450px"/>]]></code-block>
-    </tab>
-</tabs>
-
-### Collapsible blocks
-Apart from injecting entire XML elements, you can use attributes to configure the behavior of certain elements.
-For example, you can collapse a chapter that contains non-essential information:
-
-#### Supplementary info {collapsible="true"}
-Content under a collapsible header will be collapsed by default,
-but you can modify the behavior by adding the following attribute:
-`default-state="expanded"`
-
-### Convert selection to XML
-If you need to extend an element with more functions, you can convert selected content from Markdown to semantic markup.
-For example, if you want to merge cells in a table, it's much easier to convert it to XML than do this in Markdown.
-Position the caret anywhere in the table and press <shortcut>Alt+Enter</shortcut>:
-
-<img src="convert_table_to_xml.png" alt="Convert table to XML" width="706" border-effect="line"/>
-
-## Feedback and support
-Please report any issues, usability improvements, or feature requests to our
-<a href="https://youtrack.jetbrains.com/newIssue?project=WRS">YouTrack project</a>
-(you will need to register).
-
-You are welcome to join our
-<a href="https://jb.gg/WRS_Slack">public Slack workspace</a>.
-Before you do, please read our [Code of conduct](https://www.jetbrains.com/help/writerside/writerside-code-of-conduct.html).
-We assume that you’ve read and acknowledged it before joining.
-
-You can also always email us at [writerside@jetbrains.com](mailto:writerside@jetbrains.com).
-
 <seealso>
-    <category ref="wrs">
-        <a href="https://www.jetbrains.com/help/writerside/markup-reference.html">Markup reference</a>
-        <a href="https://www.jetbrains.com/help/writerside/manage-table-of-contents.html">Reorder topics in the TOC</a>
-        <a href="https://www.jetbrains.com/help/writerside/local-build.html">Build and publish</a>
-        <a href="https://www.jetbrains.com/help/writerside/configure-search.html">Configure Search</a>
+    <category name="Related topics" ref="inf">
+        <a href="https://github.com/orange-cpp/omath">GitHub repository</a>
+        <a href="https://yougame.biz/threads/332534">YouGame thread</a>
     </category>
-</seealso>
\ No newline at end of file
+</seealso>