doc: Update the release notes.
* Added support for the dependency graph SBT plugin. Resolution cache generation is no longer a requirement of the SBT detector.
### Changed features
-* (IDETECT-2409) Gradle detector no longer uses the gradle inspector. Only the init script is required.
+* Gradle detector no longer uses the gradle inspector. Only the init script is required.
* The default BDIO format for communicating dependency graphs to Black Duck has been changed from BDIO1 to BDIO2.
### Resolved issues
* (IDETECT-2434) Resolved an issue in the CLANG detector on Ubuntu and Debian systems that caused it to omit a package when that package had been installed on the system from multiple architectures.
* (IDETECT-2413) Resolved an issue to upgrade internal dependencies to support JDK 15.
+* (IDETECT-2409) Resolved an issue to allow Gradle detector to support Gradle 6.8.
## Version 6.9.0
### New Features
