Update README.md for upstream Gradle issue workaround (#955)

* Update README.md

Add known issues section and workaround for configuration cache incompatibility

* Update README.md

Add additional info

* Update README.md

Author: elevenfive

README.md

@@ -14,6 +14,7 @@ checks for updates to Gradle itself.
   - [buildscript block](#buildscript-block)
   - [Using a Gradle init script](#using-a-gradle-init-script)
   - [Related plugins](#related-plugins)
+  - [Known issues](#known-issues)
 - [dependencyUpdates](#dependencyupdates)
   - [Multi-project build](#multi-project-build)
   - [Revisions](#revisions)
@@ -122,6 +123,9 @@ You may also wish to explore additional functionality provided by,
  - [refreshVersions](https://github.com/jmfayard/refreshVersions)
  - [update-versions-gradle-plugin](https://github.com/tomasbjerre/update-versions-gradle-plugin)
 
+### Workarounds for related Gradle Issues ###
+ - https://github.com/gradle/gradle/issues/24636: setting the flag `org.gradle.configuration-cache.problems=warn` in `gradle.properties` causes the dependency check to fail to find dependencies with message `No dependencies found`.  Comment out that line until the upstream issue with Gradle is fixed.
+
 ## Tasks
 
 ### `dependencyUpdates`