Update insights endpoints to clarify optional/required params

adding note to two endpoints that did not have information about XOR on start/end or time_range

docs/dev/api/insights.md

@@ -24,6 +24,10 @@ Return run data for all tests that match the request criteria.
 
 #### Parameters
 
+:::note
+This call requires <code>start</code> and <code>end</code> parameters OR the <code>time_range</code> parameter.
+:::
+
 <table id="table-api">
   <tbody>
     <tr>
@@ -412,6 +416,10 @@ Return a set of data "buckets" representing tests that were run in each time int
 
 #### Parameters
 
+:::note
+This call requires <code>start</code> and <code>end</code> parameters OR the <code>time_range</code> parameter.
+:::
+
 <table id="table-api">
   <tbody>
     <tr>