Title of README should be <h1>
In README, link the name of each structure to its Yardoc page
Align comments in Vector docstring
Vector#add spec also applies to #<<, #conj, #conjoin
Corrected test descriptions for Vector#assoc and #rassoc spec
Added spec for Vector#drop when called with a negative argument
Added spec for Hash#to_a
Added spec for Vector#compact
Added spec for Vector#count
Worked on README docs for Hash, Vector, List

Heading of each section links to Yardoc. Formatting has been adjusted to use less
vertical space. Some irrelevant parts have been removed, and wording has been
adjusted a bit.