Adds Crésus sponsorship to README

Updates BACKERS

BACKERS.md

@@ -34,6 +34,7 @@ None currently — could be you or your company here!
 - Brandon Burroughs
 - Eugen Grue
 - Guido Kessels
+- Jon G
 - Jordan Oroshiba
 - Ken Howard
 - Michael Duffy (former Silver Sponsor)
@@ -43,22 +44,19 @@ None currently — could be you or your company here!
 - Pavel Khlopin
 - Pelle Wessman
 - Raphael Schweikert
+- Sergey Cheperis
 - Stephen Kelley
 - Xananax
 - Øyvind de Freitas Sørensen
 
 <h2 align="center">Backers</h2>
 
-- Adam Parkin
-- Daniel Andersson
+- Brent Schmidt
 - Diego La Manno
 - Gav Massignham
 - J Burnett
 - JehongAhn
-- Jon G
-- Maximilian Wendel
 - Nathaniel Blackburn
 - Raymond Brigleb
-- Robert Leisser
 - Sunny Gupta
 - Vance Dubberly

README.md

@@ -15,9 +15,13 @@
 <p align="center" style="margin: 0 10%">
   <a title="Try CodeStream" href="https://codestream.com/?utm_source=vscmarket&utm_medium=banner&utm_campaign=gitlens"><img src="https://raw.githubusercontent.com/eamodio/vscode-gitlens/master/images/docs/sponsors/codestream-light.png" alt="CodeStream Logo"/></a>
   <br />
-  <small>
+  <small><small>
     CodeStream enables continuous code review by putting team chat in VS Code. Save discussions about code with your code. Integrates w/Slack.
-  </small>
+  </small></small>
+</p>
+<br/>
+<p align="center" style="margin: 0 10%">
+  <a title="Visit Crésus" href="https://cresus.ch"><img src="https://raw.githubusercontent.com/eamodio/vscode-gitlens/master/images/docs/sponsors/cresus.png" alt="Crésus Logo"/></a>
 </p>
 
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