Use GitHub default community health files

Closes gh-1617

Author: rwinch

CODE_OF_CONDUCT.adoc

@@ -3,9 +3,16 @@
 Spring Session is released under the Apache 2.0 license. If you would like to contribute
 something, or simply want to hack on the code this document should help you get started.
 
+
 == Code of Conduct
-This project adheres to the Contributor Covenant link:CODE_OF_CONDUCT.adoc[code of conduct].
-By participating, you  are expected to uphold this code. Please report unacceptable behavior to [email protected].
+
+Please see our https://github.com/spring-projects/.github/blob/master/CODE_OF_CONDUCT.md[code of conduct]
+
+
+== Reporting Security Vulnerabilities
+
+Please see our https://github.com/spring-projects/spring-session/security/policy[Security policy].
+
 
 == Using GitHub issues
 

CONTRIBUTING.adoc

@@ -18,10 +18,16 @@ Spring Session consists of the following modules:
 * Spring Session JDBC - provides `SessionRepository` implementation backed by a relational database and configuration support
 * Spring Session Hazelcast - provides `SessionRepository` implementation backed by Hazelcast and configuration support
 
+
 == Code of Conduct
 
-This project adheres to the Contributor Covenant link:CODE_OF_CONDUCT.adoc[code of conduct].
-By participating, you  are expected to uphold this code. Please report unacceptable behavior to [email protected].
+Please see our https://github.com/spring-projects/.github/blob/master/CODE_OF_CONDUCT.md[code of conduct]
+
+
+== Reporting Security Vulnerabilities
+
+Please see our https://github.com/spring-projects/spring-session/security/policy[Security policy].
+
 
 == Spring Session Project Site