Minor Spelling Mistake of Image.

I just corrected the spelling mistake of Images. 

I tried to write about Social Menus in FAQ, but couldn't. You seem to have used markdown for readme file, which is great. But when I tried to modify and add texts and images, it was really hard. Maybe because I couldn't understand how to edit it. 

For example: How did you upload images to GitHub before using it in markdown? I assume you used your text-editor to write ReadMe.md file. You have even made table of contents. How did you figure out the id for specific post before uploading it to GitHub? 

I tried to add something but it was really hard. Maybe because I couldn't understand how you've written it and linked it properly.

Thank you.