all: prettify the look and feel of the website

[odeke-em]

So we've rolled out phase 1 of the revamped website, with a focus on ensuring that the content is so easy to find. Unfortunately, I am the least visually competent person and the website currently looks too skeletal. The old website looked great but in the measure of disbursing content, it lacked. The new one is on the opposite side of the spectrum.

In phase 2 of the revamp, it would be great to firstly compile feedback from various users and what their thoughts are on the organization of OpenCensus and then we can make a more visually appealing design and get some of our UI experts like @adamgarza @hvent90 and others to help out.

[odeke-em]

/cc @tags07 too

[adamgarza]

I'm game for phase 2.