Interaction detection doesn’t support Ratio metrics for now. (#697)

Author: bertilhatt

docs/statistics/interaction-detection.md

@@ -56,7 +56,7 @@ Both assignment dependence and effect interactions require statistical tests in
 
 ## How Can I Use The Interaction Effect Detection?
 
-To check for either type of interaction, click the breadcrumbs on any metric in your experiment and select "Check for Interaction Effect".
+To check for either type of interaction, click the breadcrumbs on any simple metric in your experiment and select "Check for Interaction Effect".
 
 ![Breadcrumbs](/img/interaction-detection/bread-crumbs.png)
 
@@ -90,4 +90,4 @@ If assignments are independent, but an interaction effect exists, Eppo will disp
 
 * **Red Banner**: Assignments are dependent and effect interaction.
 
-    Similar to above.
+    Similar to above.