Fix typo

Author: SylvainCorlay

about.html

@@ -35,8 +35,8 @@
     photo: Frederic_Collonval.jpg
     gh_handle: https://github.com/fcollonval
     linkedin: https://www.linkedin.com/in/frederic-collonval-41147955/
-  - name: Marthe Cryan
-    photo: Marthe_Cryan.jpg
+  - name: Martha Cryan
+    photo: Martha_Cryan.jpg
     gh_handle: http://github.com/marthacryan
   - name: Wayne Decatur
     photo: Wayne_Decatur.jpg