Fix tyo

Author: zohairawan

src/hardware/motherboard.md

@@ -4,5 +4,5 @@ All of these parts, and the parts I didn't mention, are connected to
 a big circuit board called a "motherboard."
 
 The motherboard connects the CPU, RAM, and any hard drive(s) such that they
-can "talk" to eachother. The details of how it does this aren't super important, so just imagine
+can "talk" to each other. The details of how it does this aren't super important, so just imagine
 that a tiny wizard lives inside it.