Fix: nylas logo

Author: AaronDDM

README.md

@@ -1,5 +1,5 @@
 <a href="https://www.nylas.com/">
-    <img src="https://brand.nylas.com/assets/downloads/logo_horizontal_png/Nylas-Logo-Horizontal-Blue_.png" alt="Aimeos logo" title="Aimeos" align="right" height="60" />
+    <img src="/diagrams/nylas-logo.png" alt="Nylas logo" title="Nylas" align="right" height="40" />
 </a>
 
 # Nylas Node.js SDK