issue running with tag annotation

[otigreros]

using the example ./gradlew gordon --tests=com.example.RunTestsWithThisAnnotation
I try use the Large annotation on android /gradlew gordonDemo --tests=androidx.test.filters.LargeTest
also I found that run a simple test on 1.4.1 don't find the add, but in the 1.3.1 works without problem in the same project

on 1.4.1

* What went wrong:
Execution failed for task ':wallet:gordonDemo'.
> Unable to determine the location of ADB. Please set the --adb flag or define ANDROID_HOME or PATH environment variable.

but on 1.3.1 test not found

[otigreros]

fixed adding the ANDROID_HOME, you should probably add that to the Documentation, because on 1.3.1 was no necessary that