Version of hawkBit 0.2.4 added

Signed-off-by: Dominic Schabel <dominic.schabel@bosch-si.com>

docs/content/release-notes.md

@@ -3,22 +3,28 @@ title: Release notes
 weight: 100
 ---
 
+## 0.2.4
+
+**Release Date:** Friday, October 26, 2018 <br />
+[Tag](https://github.com/eclipse/hawkbit/releases/tag/0.2.4) /
+[Release](https://github.com/eclipse/hawkbit/milestone/13?closed=1)
+
 ## 0.2.3
 
 **Release Date:** Monday, October 1, 2018 <br />
-[Tag](https://github.com/eclipse/hawkbit/releases/tag/0.2.3) / 
+[Tag](https://github.com/eclipse/hawkbit/releases/tag/0.2.3) /
 [Release](https://github.com/eclipse/hawkbit/milestone/12?closed=1)
 
 ## 0.2.2
 
 **Release Date:** Thursday, September 21, 2018 <br />
-[Tag](https://github.com/eclipse/hawkbit/releases/tag/0.2.2) / 
+[Tag](https://github.com/eclipse/hawkbit/releases/tag/0.2.2) /
 [Release](https://github.com/eclipse/hawkbit/milestone/10?closed=1)
 
 ## 0.2.1
 
 **Release Date:** Friday, July 6, 2018 <br />
-[Tag](https://github.com/eclipse/hawkbit/releases/tag/0.2.1) / 
+[Tag](https://github.com/eclipse/hawkbit/releases/tag/0.2.1) /
 [Release](https://github.com/eclipse/hawkbit/milestone/9?closed=1)
 
 
@@ -27,7 +33,7 @@ weight: 100
 First Eclipse hawkBit release including:
 
 * **Core features:**
-  * Device and Software Repository 
+  * Device and Software Repository
   * Update Management Management UI/Console
   * Artifact Content Delivery
   * Rollout/Campaign Management
@@ -38,7 +44,7 @@ First Eclipse hawkBit release including:
   * Device Management Federation (DMF) API
 
 **Release Date:** Friday, June 15, 2018 <br />
-[Tag](https://github.com/eclipse/hawkbit/releases/tag/0.2.0) / 
+[Tag](https://github.com/eclipse/hawkbit/releases/tag/0.2.0) /
 [Release](https://github.com/eclipse/hawkbit/milestone/1?closed=1) /
 [Eclipse](https://projects.eclipse.org/projects/iot.hawkbit/releases/0.2.0)