Add docs for 3.0 (#4705)

Co-authored-by: qwerty287 <80460567+qwerty287@users.noreply.github.com>
Co-authored-by: qwerty287 <qwerty287@posteo.de>
Co-authored-by: Robert Kaussow <mail@thegeeklab.de>
Co-authored-by: Anbraten <anton@ju60.de>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Anbraten <6918444+anbraten@users.noreply.github.com>

.cspell.json

@@ -16,6 +16,7 @@
     "antfu",
     "apimachinery",
     "appleboy",
+    "aquasec",
     "Archlinux",
     "autoincr",
     "automerge",
@@ -30,6 +31,7 @@
     "buildx",
     "caddyfile",
     "ccmenu",
+    "CERTDIR",
     "certmagic",
     "charmbracelet",
     "cicd",
@@ -41,7 +43,6 @@
     "cpuset",
     "creativecommons",
     "Curr",
-    "CERTDIR",
     "datacenter",
     "DATASOURCE",
     "Debugf",