Merge pull request #62 from kube-rs/matei/add-self

Add @mateiidavid to maintainers.md

docs/maintainers.md

@@ -5,6 +5,7 @@ The Kube-rs maintainers are:
 * Eirik Albrigtsen <[email protected]> [@clux](https://github.com/clux)
 * Natalie Klestrup Röijezon <[email protected]> [@nightkr](https://github.com/nightkr)
 * Kaz Yoshihara <[email protected]> [@kazk](https://github.com/kazk)
+* Matei David <[email protected]> [@mateiidavid](https://github.com/mateiidavid)
 
 ## Emeriti