Add soldering Session

_index.md

@@ -23,8 +23,9 @@ Welcome to card10 Wiki. You can [browse](https://git.card10.badge.events.ccc.de/
 <!--- Please add this also to en/events.md -->
 - Events
   - Upcoming:
-     - **card10 meetup in Berlin**: xHain 06.08. ~~19:00~~ => 20:00
+     - **card10 Soldering Session in Berlin**: xHain Saturday 10. August starting at 10 am
   - Previous
+     - **card10 meetup in Berlin**: xHain 06.08. ~~19:00~~ => 20:00
      - card10 meetup in Berlin: xHain 05.06. 20:00
      - card10 meetup in Berlin: afra 21.06. 19:00
      - card10 meetup in Berlin: xHain 14.06. 19:00