Update README.md

Updated links to how-to videos

README.md

@@ -94,9 +94,9 @@ Ensure you have all the required products ([listed below](#H_E850B4FF)) installe
 
 These short videos demonstrate some of the basic techniques used to simulate and measure circuits in the module.
 
--  [Building a Circuit](https://github.com/MathWorks-Teaching-Resources/DC-Circuit-Analysis#building-a-circuit) 
--  [Analyzing with a Multimeter](https://github.com/MathWorks-Teaching-Resources/DC-Circuit-Analysis#analyzing-with-a-multimeter) 
--  [Demonstrating Oscilloscope Operation](https://github.com/MathWorks-Teaching-Resources/DC-Circuit-Analysis#demonstrating-oscilloscope-operation) 
+-  [Building a Circuit](https://user-images.githubusercontent.com/81383420/145588577-d98c4563-b41b-447c-acbb-afe0f6d70da5.mp4) 
+-  [Analyzing with a Multimeter](https://user-images.githubusercontent.com/81383420/145589989-f7ae4a32-cab3-405d-b7e8-476e34d697b5.mp4) 
+-  [Demonstrating Oscilloscope Operation](https://user-images.githubusercontent.com/81383420/145592175-ed68b140-f7d7-4355-85d4-a47feb8a82ec.mp4) 
 
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 # License