Update README.md

Author: AffinityGH

README.md

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 # AutoZoom
 A program designed to make your Zoom schedule easier to follow.
+
+**TL;DR Installation Guide** 
+
+Simply download and run the installer to install AutoZoom.
+Once the install is finished, simply run AutoZoom.
+
+**Update Existing Installation** 
+
+BEFORE YOU DO ANYTHING:
+  To save your existing schedules, extract the text files out of the existing installation directory and save them to a folder.
+  
+1. Uninstall the old version of AutoZoom.
+2. Run the new AutoZoom installer and wait for the installation to complete.
+3. To reupload your schedules, simply add them to the new installation folder in the same spot where you found them.
+
+**Please submit all bug reports to the GitHub so I can address them!**
+
+Special thanks to *AceScottie* who helped me through Tkinter.
+Feel free to distribute the code, but please do not claim it as your own.