added memory slides to 1511 revision workshop page (#237)

feat: added slides on pointers and memory to the 1511 revision workshop page

Author: BadAtEveryGame

data/course-revision/1511-23T1.mdx

@@ -26,4 +26,12 @@ $ ~csesoc/1511-fetch
 
 ## Solutions
 
-Solutions have now been released! Scroll down to the bottom of each problem page to find the link.
+Links to sample solutions can be found at the bottom of each problem!
+
+<br/><br/>
+## [Pointers and Memory Slides](https://docs.google.com/presentation/d/1Iz8lKozedeIq5ECu0vN3ZPgnke88r2L5H7UIt9otwC8/edit?usp=sharing)
+
+<figure class="video_container">
+<iframe src="https://docs.google.com/presentation/d/e/2PACX-1vSrzCDBJhJKV9AO8xCmFkjd6LpFnf9r2anwIIZe276k3Cn-NFI_nrbyXq8wAnPUMpWsRu_aS2csf-pu/embed?start=false&loop=false&delayms=60000" frameborder="0" width="960" height="569" allowfullscreen="true" mozallowfullscreen="true" webkitallowfullscreen="true">
+</iframe>
+</figure>