Fix missing schema support entry for 11.x

Fixes #750

Signed-off-by: nscuro <nscuro@protonmail.com>

Author: nscuro

README.md

@@ -33,6 +33,7 @@ the CycloneDX version supported by the target system.
 
 | Version |  Schema Version  | Format(s) |
 |---------|------------------|-----------|
+| 11.x    | CycloneDX v1.6.1 | XML/JSON  |
 | 10.x    | CycloneDX v1.6.1 | XML/JSON  |
 | 9.x     | CycloneDX v1.6   | XML/JSON  |
 | 8.x     | CycloneDX v1.5   | XML/JSON  |