The web is case sensitive, meaning a 'J' and a 'j' are not equal and are recognized as two different characters; photo.JPG and photo.jpg are not automatically the considered the same file, so your links must also be case sensitive.
I have a photo on my hard drive called My Cat.png that I need to rename before uploading it to my website. Correctly rename My Cat.png in the followng forms:
Consider the structure of my directory. I am trying to link to my screenshot.png file from my readme. I've written  in markdown but it isn't working. Why?
I forgot to include a . / before my file name.
The file name in my link does not exactly match the file name on my hard drive.
I've capitalized the images folder name in my link, but the original is in lowercase.
