assignment fixes

CHANGELOG.md

+Carl: Added TODO.md and CHANGELOG.md according to assignment instructions.
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README.md

 # Vibora rapida muerta 
 ### Participants: 
-Carl Österberg, Otto Kalliorinne, Alba Gallego
+Carl Österberg (grade 4), Otto Kalliorinne, Alba Gallego
 
 ### Introduction
 We plan to make a gaming mouse using the shell of an old RZ01-0201 gaming mouse.
@@ -21,11 +21,5 @@ We plan to make a gaming mouse using the shell of an old RZ01-0201 gaming mouse.
 * PixArt PMW3389 sensor
 * Shell of RZ01-0201
 
-### Nucleo board scetch
-TODO
-
-### Electrical specs
-TODO
-
 ### Software specs
 https://github.com/stm32-rs/stm32f4xx-hal
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TODO.md

+### Nucleo board scetch
+PCB has to be designed and needs to have the same structure as the old PCB as we are reusing a mouse case.
+
+### Electrical specs
+Checkout electrical specs for all the new components we added.
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