[docs] Fix typos in README.md

Author: NeoSahadeo

README.md

@@ -2,9 +2,11 @@
 
 Everthing except the RAM and NAND gate are derived from the NAND gate.
 
+All CPU files are in the src folder.
+
 ## Documentation
 
-The documentation explains the interal logic of the CPU.
+The documentation explains the internal logic of the CPU.
 
 The documentation does not contain circuit diagrams; it does include
 the relevant logic gates.