#71 updated current and prev tech leads; replaced raw html with the react components using .mdx

[Anjali0407-git]

Fixes #71

[kungfuchicken]

I have one small change, and I want to check my assumptions.

First, I think it makes sense to update the profile picture for Dr. Holdener and myself using the same Profile component, but I think it might make more sense to directly replace the <div> tag with it. What do you think?

That leads to my next question, a check on my assumptions. I was originally thinking of directly replacing <div>-based profiles with the Profile component directly in the .mdx file. My thinking was it is obvious what is doing what, and making updates is just editing a slightly fancy markdown file. Your approach separates the MDX and component as a presentation of a separate set of data. That's still pretty clean, and updates are just as quick and easy. It forces a preservation of the overall layout and structure of the page, too. My only concern is that it might add to the complexity, and therefore add to potential confusion when we go back to update it. What do you think?

As I'm looking at the overall page layout there are some other elements that probably need restructuring, too. I think it's worth getting this done before moving on to those, though.

[Anjali0407-git]

I think replacing the <div> tags with Profile component won't actually reduce the number of lines of code we use. Also, since we'll need to keep adding new student profiles every semester, the way we're doing it now might be easier. As the Current Tech leads, Previous Tech leads and Developers does not have the individual anchor tags to worry about.
However, for important roles like the Leadership Team or SLU research Tech Leads, using the Profile component seem like the best option because it has your names as the title which is an anchor tag. Not sure if we can replicate the same behaviour using React