Remove Martin on his request

Martin reached out and wants to focus on his studies and
full time work.

Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alexellis2@gmail.com>

Author: alexellis

_data/members.yml

@@ -9,14 +9,15 @@ core:
 members:
   - alistair
   - vivek
-  - martin
   - stefan
   - utsav
 
 # Listed for several months, GitHub and leaderboard shows former contributors permanently
 former_members:
-  - burton
-  - ed
-  - richard
-  - john
-  - ken
+  - martin
+
+  # - burton
+  # - ed
+  # - richard
+  # - john
+  # - ken