Update readme.md

Fix typos.

Author: intrepidcoder

readme.md

@@ -3,25 +3,25 @@
 ##Description:
 * Solves Sudoku puzzles.
 * Takes input from console, ignoring all characters except the digits 0-9.
-* Once 81 digits have been imputed, the solution will be outputted.
+* Once 81 digits have been inputted, the solution will be outputted.
 
 ##Usage:
-* To compile: javac Sudoku.java
-* To run:     java Sudoku
-* To run with file input: java Sudoku < file.txt
+* To compile: `javac Sudoku.java`
+* To run: `java Sudoku`
+* To run with file input: `java Sudoku < file.txt`
 
 ##Output description:
-* If there is more than one solution, the program outputs one valid solution.
 * Outputs whether a puzzle has no solution, a single solution, or multiple solutions.
+* If there is more than one solution, the program outputs one valid solution.
 * Outputs the number of cells that were solved with each technique if the puzzle has a solution.
 
 ###Techniques:
 * Given - A cell that was inputted.
-* Single - A cell that was solved because it only has one candidate.
-* Hidden single - A cell that was solved because it had a candidate that appeared only once in its row, column or 3x3 block.
+* Single - A cell that was solved because it had only one candidate (posible value).
+* Hidden single - A cell that was solved because it had a candidate that appeared only once in its row, column, or 3x3 block.
 * Intersection - A cell that was solved because one or more of its candidates were eliminated because they had to occur in another intersecting row, column, or block.
 * Guess - A cell that was solved by guessing.
 
 If the puzzle cannot be solved using singles, hidden singles, or intersections, the program will make guesses until it reaches a solution.
 
-See sampleinput.txt and sampleoutput.txt for example input and output.
+See sampleinput.txt and sampleoutput.txt for example input and output.