Run filters: UI Updates

models/runs/filter-runs.mdx

@@ -36,6 +36,13 @@ The following image filters runs based on loss values less than or equal to `1`:
     <img src="/images/data_vis/filter.png" alt="Incorrect predictions filter"  />
 </Frame>
 
+The number of runs that match the filter expression appears above the runs table, below the filter button.
+
+For example, the following image shows `6 of 18 listed` which means 6 of the 18 listed runs match the filter expression and are currently displayed. The count is highlighted in the yellow box.
+
+<Frame>
+    <img src="/images/runs/filter_count.png" alt="Number of runs that match filter expression"  />
+</Frame>
 
 The following sections show some examples of how to filter runs in the Runs table.