more docu

Author: rbri

README.md

@@ -286,12 +286,14 @@ Checkout these pages on our website for detailed hints about starting with the d
 
 ## Development Tools
 
-Special thanks to
+Special thanks to:
 
 <a href="https://www.jetbrains.com/community/opensource/"><img src="https://resources.jetbrains.com/storage/products/company/brand/logos/jb_beam.svg" alt="JetBrains" width="42"></a>
 <a href="https://www.jetbrains.com/idea/"><img src="https://resources.jetbrains.com/storage/products/company/brand/logos/IntelliJ_IDEA_icon.svg" alt="IntelliJ IDEA" width="42"></a>  
 **[JetBrains](https://www.jetbrains.com/)** for providing IntelliJ IDEA under their [open source development license](https://www.jetbrains.com/community/opensource/) and
 
+<a href="https://www.eclipse.org/"><img src="https://www.eclipse.org/eclipse.org-common/themes/solstice/public/images/logo/eclipse-foundation-grey-orange.svg" alt="Eclipse Foundation" width="80"></a>  
+Eclipse Foundation for their Eclipse IDE
 
-<a href="https://www.syntevo.com/smartgit/"><img src="https://www.syntevo.com/assets/images/logos/smartgit-8c1aa1e2.svg" alt="SmartGit" width="42"></a>  
+<a href="https://www.syntevo.com/smartgit/"><img src="https://www.syntevo.com/assets/images/logos/smartgit-8c1aa1e2.svg" alt="SmartGit" width="54"></a>  
 to **[Syntevo](https://www.syntevo.com/)** for their excellent [SmartGit](https://www.smartgit.dev/)!

src/site/xdoc/development.xml

@@ -61,7 +61,24 @@ mvn eclipse:eclipse -DdownloadSources=true
         </subsection>
 
         <subsection name="IntelliJ IDEA Project">
-            ToDo
+            <p>
+                IntelliJ IDEA has built-in Maven support and can directly import the HtmlUnit project.
+            </p>
+
+            <subsection name="Import Project into IntelliJ IDEA">
+                <ol>
+                    <li>Open IntelliJ IDEA</li>
+                    <li>Select <code>File → Open</code></li>
+                    <li>Navigate to the cloned HtmlUnit directory</li>
+                    <li>Select the <code>pom.xml</code> file and click <code>Open</code></li>
+                    <li>Choose <code>Open as Project</code> when prompted</li>
+                    <li>IntelliJ will automatically detect the Maven project and import it</li>
+                </ol>
+                <p>
+                    IntelliJ IDEA will automatically download dependencies and set up the project structure.
+                </p>
+            </subsection>
+
         </subsection>
 
         <subsection name="Running the Tests from Maven">