chore: update links to point to correct site (#125)

Author: DaveyEke

README.md

@@ -1,4 +1,4 @@
-<a href="https://margelo.io">
+<a href="https://margelo.com">
   <img src="./img/banner.svg" width="100%" />
 </a>
 
@@ -199,7 +199,7 @@ Download the Pink Panda mobile app to see react-native-graph in action!
 
 ## Adopting at scale
 
-react-native-graph was built at Margelo, an elite app development agency. For enterprise support or other business inquiries, contact us at <a href="mailto:hello@margelo.io?subject=Adopting react-native-graph at scale">hello@margelo.io</a>!
+react-native-graph was built at Margelo, an elite app development agency. For enterprise support or other business inquiries, contact us at <a href="mailto:hello@margelo.com?subject=Adopting react-native-graph at scale">hello@margelo.com</a>!
 
 ## Thanks