update About page description

- Add a missing "a"
- Add a contact email.

meta/main/about.yml

@@ -2,4 +2,6 @@ title: About
 description: | 
     The Center for Computation and Visualization provides high-performance computing
     and visualization services to the Brown community. We also collaborate with researchers
-    on projects across vast range of disciplines. 
+    on projects across a vast range of disciplines. 
+    If you'd like to work with us, contact 
+    [mailto:[email protected]]([email protected]).