Trivial Update Post: Opto Enstop Docs

Some have complained that the posts here are somewhat sporadic and they'd like to read more, and I agree with them. It can give the illusion that we aren't working very hard, when in fact we are working very hard on RepRap. So hard that sometimes we don't have time to post on the blog. We're going to try and change that by ideally posting once a day with something that has changed, or been worked on.

Today, I updated the Opto Endstop documentation page. It's almost complete, I just need to take a couple more pictures, and write up some testing info to go along with it. It's a pretty basic page, but now it is much nicer and up to date with the current project status.