Mention compatible Gradle versions in docs

FEATURES.md

@@ -18,3 +18,10 @@ Following limitations apply to Milestone 1 (M1) release.
   * Only macOS 10.15 or later is supported
   * Only 64-bit Windows is supported
   * Only JDK 11 or later is supported due to the memory management scheme used in Skia bindings
+
+[comment]: <> (__SUPPORTED_GRADLE_VERSIONS__)
+
+### Gradle plugin compatibility
+
+* M1 works only with Gradle 6.4 and 6.5;
+* M2 works only with Gradle 6.4 or later (6.7 is the latest tested version).

gradle-plugins/compose/build.gradle.kts

@@ -58,6 +58,7 @@ val jar = tasks.named<Jar>("jar") {
     this.duplicatesStrategy = DuplicatesStrategy.INCLUDE
 }
 
+// __SUPPORTED_GRADLE_VERSIONS__
 val minGradleVersionForTests = "6.4"
 val maxGradleVersionForTests = "6.7"
 val java14Home: String? = when (JavaVersion.current()) {