add PyLadies Berlin summer sprint

Author: marenwestermann

_pages/sprints.md

@@ -9,9 +9,11 @@ author_profile: false
 
 
 - 2023
+  - Berlin, Germany: [PyLadies Berlin](https://www.meetup.com/pyladies-berlin/events/294785222/) (Aug 2023)
+  - Berlin, Germany: [PyLadies Berlin](https://www.meetup.com/pyladies-berlin/events/294784938/) (Jul 2023)
   - Zurich, Switzerland: [Python Sprints Zurich](https://www.meetup.com/python-sprints-zurich/events/291718007/) (Mar 2023)
-  - Berlin, Germany: [PyLadies Berlin](https://www.meetup.com/pyladies-berlin/events/291249163/) (Feb 2022)
-  - Berlin, Germany: [PyLadies Berlin](https://www.meetup.com/pyladies-berlin/events/291248660/) (Feb 2022)
+  - Berlin, Germany: [PyLadies Berlin](https://www.meetup.com/pyladies-berlin/events/291249163/) (Feb 2023)
+  - Berlin, Germany: [PyLadies Berlin](https://www.meetup.com/pyladies-berlin/events/291248660/) (Feb 2023)
 
 - 2022
   - Paris, France: [PyLadies Paris](https://www.meetup.com/pyladiesparis/events/290003585/) (Dec 2022)