Update step.yml (#27)

* Update step.yml

Updated wording in Module and Variant fields to clarify how to test all modules and variants.

* Update step.yml Module and Variant input description and summary,

Co-authored-by: Krisztián Gödrei <krisztian.godrei@bitrise.io>

step.yml

@@ -34,17 +34,21 @@ inputs:
     opts:
       title: Module
       summary: |
-        Set the module that you want to test. To see your available modules, please open your project in Android Studio and go to [Project Structure] and see the list on the left.
+        Set the module that you want to test.
       description: |
-        Set the module that you want to test. To see your available modules, please open your project in Android Studio and go to [Project Structure] and see the list on the left.
+        Set the module that you want to test.  
+        To see your available modules, please open your project in Android Studio, go to **Project Structure** and see the list on the left.  
+        Leave this input blank to test all modules.
       is_required: false
   - variant: ""
     opts:
       title: Variant
       summary: |
-        Set the variant that you want to test. To see your available variants, please open your project in Android Studio and go to [Project Structure] -> variants section.
+        Set the variant that you want to test.
       description: |
-        Set the variant that you want to test. To see your available variants, please open your project in Android Studio and go to [Project Structure] -> variants section.
+        Set the variant that you want to test.  
+        To see your available variants, please open your project in Android Studio, go to **Project Structure**, then to the **variants** section.  
+        Leave this input blank to test all variants.
       is_required: false
   - arguments:
     opts: