Update post_processing.md

docs/services/post_processing.md

@@ -67,6 +67,10 @@ Once that sweep is complete, all the viewers in the lower half of the screen are
   <img width="90%"  src="assets/postpro/analysis_slicer_numbers_v2_classic_ti.png">
 </p>
 
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+  <img width="90%"  src="assets/postpro/classic_ti_quantitative_analysis.png">
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 1. **Main Controls** <br/>
    Here, all the setting options for the viewers are located. 
    * At the top, you can freely change electrode positions (**_Configuration_**) and then update the fields by clicking the ```Reload Field``` button. 
@@ -95,10 +99,6 @@ Once that sweep is complete, all the viewers in the lower half of the screen are
    * ```Add to Report``` allows addition of the six viewing elements to the PDF report (according to the currently selected slicing positions and viewing angle).
    * ```Export to S4L``` creates a .cache file of the TI maximum modulation amplitude, which can then be explored in [Step 3: Exposure Analysis](/docs/services/s4l_post_processing.md).
 
-<p align="center">
-  <img width="90%"  src="assets/postpro/classic_ti_quantitative_analysis.png">
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 Metrics table:
 <p align="center">
   <img width="90%"  src="assets/quickguide/postpro_gui_1.gif">