adding todos and ideas; mostly from thanatermesis

firmware/keyboard/ergodox/layout/readme.md

@@ -1,4 +1,15 @@
-## TODO: tutorials
+## TODO
+
+- fix and expand the ability of keys to do different things depending on what
+  kind of key was pressed before
+- fix the issue with shifted keys sometimes causing subsequent keys to be
+  shifted, when typing quickly (shift should probably be released when the next
+  key is pressed, in this case, if the original shifted key hasn't been
+  released)
+- maybe implement a separate per-key debounce, so that keys are scanned
+  quickly, but can only be pressed 1 time every 15 (or something) milliseconds.
+
+### Tutorials
 - basic key functions
     - mention where people should look for more information; probably, the usb, key_functions, and keys headers; and others?
 - sticky keys