Remove showcase in readme for now. Github has defeated me

Author: lucascompython

README.md

@@ -13,17 +13,6 @@ Keybindings:
 More options with ./particles --help
 
 
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-![Showcase](/showcase.mov)
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-
-<video width="320" height="240" controls>
-  <source src="/showcase.mov" type="video/mp4">
-</video>
-[Showcase With 10x multiplier](https://raw.githubusercontent.com/lucascompython/particles/main/showcase_multiplier10.mp4)
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-
-
 ## Compilation
 
 Install raylib on your system, then adjust the [build.rs](/build.rs) file to point to the raylib library.