Propose kakkoyun as next release shepherd (thanos-io#2950)

Signed-off-by: Kemal Akkoyun <[email protected]>

Author: kakkoyun

docs/release-process.md

@@ -32,8 +32,9 @@ Release shepherd responsibilities:
 
 | Release   | Time of first RC         | Shepherd (GitHub handle) |
 |-----------|--------------------------|--------------------------|
-| v0.15.0   | (planned) 2020.08.12     | volunteer                |
-| v0.14.0   | (planned) 2020.07.01     | `@kakkoyun`              |
+| v0.16.0   | (planned) 2020.09.23     | Volunteer                |
+| v0.15.0   | (planned) 2020.08.12     | `@kakkoyun`              |
+| v0.14.0   | 2020.07.10               | `@kakkoyun`              |
 | v0.13.0   | 2020.05.13               | `@bwplotka`              |
 | v0.12.0   | 2020.04.15               | `@squat`                 |
 | v0.11.0   | 2020.02.19               | `@metalmatze`            |