Fixing Oakam coordinates

Author: Marc Garcia

_sponsors/oakam.md

@@ -4,7 +4,7 @@ name: "Oakam"
 logo: static/images/sponsors/oakam.png
 link: https://www.oakam.com/
 address: "3rd floor, 31 Great Titchfield St<br/>London W1W 7PA"
-lat: 51.5175111
-lng: -0.1425433
+lat: 51.5175708
+lng: -0.140728
 ---
 Oakam is on a mission to make financial services accessible to millions of people across the UK.