resizing images

help/en/docs/formula-timer.md

@@ -3,27 +3,27 @@ Formula Timer
 
 Grist has a built-in formula timer that will measure the time it takes to evaluate each formula in a document. This helps diagnose which formulas are responsible for slow performance when a document is first opened, or when a document responds to changes.
 
-Grist's formula timer can be found on the 'Document Settings' page, under 'Data Engine'.
+Grist's formula timer can be found on the 'Document Settings' page, under 'Data Engine'. Select 'Start timing' to begin.
 
 <span class="screenshot-large">*![formula-timer-settings](images/formula-timer/formula-timer-settings.png)*</span>
 
-Select 'Start timing'.
-
 On the next screen, you will have two choices, 'Start timing' and 'Time reload'.
 
 <span class="screenshot-large">*![formula-timer-selection](images/formula-timer/formula-timer-selection.png)*</span>
+{: .screenshot-half }
 
-### Start timing
+## Start timing
 
 'Start timing' allows you to make changes to the document then stop timing to see the results. This is useful if you want to test specific formulas. You can make a change that affects that formula then come back and click 'Stop timing' to see the result.
 
 <span class="screenshot-large">*![formula-timer-stop-timing](images/formula-timer/formula-timer-stop-timing.png)*</span>
+{: .screenshot-half }
 
-### Time reload
+## Time reload
 
 'Time reload' forces a reload of the document while timing formulas and shows the result. This will show timing results for all formulas across the entire document.
 
-### Results
+## Results
 
 Results are displayed in a table format.