OLMv1: Add note about proxy support

Author: michaelryanpeter

extensions/index.adoc

@@ -47,4 +47,7 @@ In addition, bundle size is no longer constrained by the etcd value size limit.
 Secure catalog communication::
 {olmv1} uses HTTPS encryption for catalogd server responses.
 
+Basic support for proxied environments and trusted CA certificates::
+Operator Controller and catalogd can run in proxied environments and include basic support for trusted CA certificates.
+
 include::modules/olmv1-about-purpose.adoc[leveloffset=+1]