Update SECURITY.md

Author: clanmills

SECURITY.md

@@ -16,7 +16,7 @@ Team Exiv2 does not back-port security (or any other fix) to earlier releases of
 
 The version numbering scheme is explained below.  The design includes provision for a security release.  A _**Dot Release**_ is an updated version of the library with security PRs and other changes.  A _**Dot Release**_ offers the same API as its parent.  A _**Security Release**_ is an existing release PLUS one or more security PRs.  Nothing else is changed from it parent.  
 
-Exiv2 is not sufficiently resourced to provide notifications of security issues to users.  If the community decide that Exiv2 must strengthen its security process, the community will have to provide the necessary resources.
+Users can register on GitHub.com to receive release notices for RC and GM Releases.  Additionally, we inform users when we begin a project to create a new release on FaceBook (https://facebook.com/exiv2) and Discuss Pixls (https://discuss.pixls.us).  The announcement of a new release project has a preliminay specification and schedule.
 
 ## Version Numbering Scheme