doc: Add section regarding the Gradle Inspector back.
An inspector is typically a plugin that a ${solution_name} detector uses to access the internal resources of a package manager through its API.
-There are currently three inspectors that ${solution_name} might download.
+There are currently three inspectors that ${solution_name} might download and one inspector it has internally.
If ${solution_name} decides that your package manager needs an external inspector, you must either be online or have the applicable air gap files.
+## Gradle inspector
+
+The Gradle inspector library is no longer used in the init script. Another library is added as a dependency to a temporary Gradle script file that is executed by the ${solution_name} Gradle detector.
+
+If you are online, then Synopsys Artifactory is added as a Maven repository and the library is downloaded by Gradle.
+If you are offline, the air gap library jar files are added as classpath file dependencies.
+
+In both cases, the ${solution_name} Gradle detector executes the custom Gradle script mentioned above, which invokes a custom Gradle task.
+
+The source code for the library is located at [GitHub](https://github.com/blackducksoftware/integration-common).
+
## Docker Inspector
The Docker Inspector is available as a Java jar or shell script for Linux or Mac.
