Add Johannes, update description

Author: stmllr

src/data.yml

@@ -18,12 +18,15 @@ sponsors:
     url: 'https://www.land-in-sicht.de/'
     image: images/land-in-sicht.svg
 team:
+  - name: Johannes
+    url: https://thej6s.com/
+    image: images/johannes.png
   - name: Nico
     url: http://www.ndh-websolutions.de/
     image: images/nico.jpg
   - name: Sebastian
     url: https://twitter.com/sebastiansebald
     image: images/sebastian.jpg
   - name: Steffen
-    url: https://twitter.com/stmllr
+    url: https://stmllr.net/
     image: images/steffen.jpg

src/images/johannes.png

@@ -5,14 +5,15 @@ section.about
       p
         | Welcome to the Devsmeetup Freiburg, a monthly hangout for technology and development enthusiasts.
       p
-        | We cover a range of topics related to (software/hardware) development, project management and design. 
+        | We cover a wide range of topics related to (software/hardware) development and operation,
+        | project management and design. 
         | Exchange with like-minded people or just listen to the talk. We're looking forward to hearing from you 
         | and to see you at an upcoming event.
   .about-box.about--when
     .about-content
       h3 When?
       p
-        | Every month's last Wednesday at 8pm (except in July & December).
+        | Every month's last Wednesday at 8pm (except in August & December).
       p
         | Checkout our
         |
@@ -28,4 +29,4 @@ section.about
         +link('https://goo.gl/maps/bwvEm4nmor42')
           | Grünhof
         | .
-        
+