Fix typo (#329)

Little typo fix

Author: dromoli

meow-tutor.el

@@ -304,7 +304,7 @@
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  You can also move around things. In fact, Meow combines move and
- selection together. Everytime you select something, the curosr
+ selection together. Everytime you select something, the cursor
  will move to the beginning/end/inner/bound of things depending
  on your commands. Let's practise!