relnotes: update version and indicate no SAs/ENs have been issued

Sponsored by:	Rubicon Communications, LLC ("Netgate")

website/content/en/releases/13.0R/errata.adoc

@@ -4,7 +4,7 @@ sidenav: download
 ---
 
 :release: "13.0-RELEASE"
-:releaseNext: "13.0-RELEASE"
+:releaseNext: "13.1-RELEASE"
 :releaseBranch: "13-STABLE"
 
 = FreeBSD {release} Errata
@@ -41,6 +41,8 @@ For a list of all FreeBSD CERT security advisories, see https://www.FreeBSD.org/
 |===
 |Advisory |Date |Topic
 
+|No advisories.||
+
 |===
 
 [[errata]]
@@ -50,10 +52,16 @@ For a list of all FreeBSD CERT security advisories, see https://www.FreeBSD.org/
 |===
 |Errata |Date |Topic
 
+|No errata notices.||
+
 |===
 
 [[open-issues]]
 == Open Issues
 
+No open issues.
+
 [[late-news]]
 == Late-Breaking News
+
+No late-breaking news.