(minor doc updates)

firmware/lib/timer.h

@@ -8,6 +8,12 @@
  * Timer interface
  *
  * Prefix: `timer__`
+ *
+ * TODO:
+ * - write `timer__schedule(uint32_t milliseconds, void(*)(void) function)`, to
+ *   schedule `function` to run in `milliseconds`.
+ *   - will need to be careful with this function, as everything called by it
+ *     will be executing within an interrupt vector.
  */
 
 

firmware/readme.md

@@ -3,6 +3,7 @@
 - the gnu avr toolchain
 - python 3
   - markdown `sudo pip install markdown`
+- git (for cleaning)
 
 
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