Merge pull request #854 from Samze/samze_to_capi

Add samze to reviewer of CAPI

Author: stephanme

toc/working-groups/app-runtime-interfaces.md

@@ -319,6 +319,8 @@ areas:
     github: pivotalgeorge
   - name: Cristhian Peña
     github: ccjaimes
+  - name: Sam Gunaratne
+    github: samze
   bots:
   - name: capi-bot
     github: capi-bot