Update README.md, images/3_10_21_frame.jpg, images/3_10_21.mp4 files

README.md

 # Dynamometer
 
+Picture below is a link to a video:
+
+<figure class="video_container">
+  <video controls="true" allowfullscreen="true" poster="/images/3_10_21_frame.jpg">
+    <source src="/images/3_10_21.mp4" type="video/mp4" />
+  </video>
+</figure>
+
 Below is a high level overview of the dynamometer showing each major subsystem (aside from the power measurement IC which is being shipped from digikey). Each one is discussed in further detail below (please pardon my use of a breadboard at this stage :D).
 
 ![alt_text](images/dyno/overviewTemp.png "image_tooltip")