Trimmed whitespace.
Remove redundant word 'also'.
Fixed path.
Fixed broken link to example image.
Trimmed whitespace.
Fixed spelling typo.
Declare 'tx' only once.
Declare 'ty' only once.
Use strict === checking.
Easier to read.
Array literal notation is preferable.
No point in checking this twice.
Added comment.
Modified comment for clarity.
Spelling.
Merge pull request #6 from Joncom/master

A few very minor improvements.