Adding link to map of patches

Author: bakkeby

Diff for: README.md

@@ -13,6 +13,8 @@ Refer to [https://dwm.suckless.org/](https://dwm.suckless.org/) for details on t
 
 If you are experiencing issues then you may want to check out the [Known Issues](https://github.com/bakkeby/dwm-flexipatch/discussions/categories/known-issues) discussion category.
 
+Browsing patches? There is a [map of patches](https://coggle.it/diagram/X9IiSSM6PTWOM9Wz) diagram which tries to organise patches into categories.
+
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 ### Changelog: