update README

This commit is contained in:
Reza Behzadan 2020-06-01 04:57:05 +04:30
parent 227fa8a257
commit 1bb8bdc6b0

View File

@ -12,3 +12,5 @@
- u: undo
- f: save current state to "lastBoard.txt"
- c: solve the puzzle
- -: zoom out
- =: zoom in