add png and svg

[aloctavodia]

I used inkscape to vectorize the logo. I hope this is good enough to solve #7

[reshamas]

@aloctavodia
Oh wow! This is great! Let's give it a try. Thanks!

cc: @drbenvincent

[reshamas]

@aloctavodia
So, it looks pretty good, though you can see a slight difference in the sharpness of the letters M and C.

[aloctavodia]

Glad this help. I will see if I can improve this.