🐛 FIX: Examples

[JPchico]

Removed the passing of structure from the examples and the README.md, and made used of the potential dictionaries to pass the data to the EmpiricalPotential instances.

Addresses #18

[codecov]

Codecov Report

Merging #19 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master      #19   +/-   ##
=======================================
  Coverage   77.07%   77.07%           
=======================================
  Files          35       35           
  Lines        2281     2281           
=======================================
  Hits         1758     1758           
  Misses        523      523           

Flag	Coverage Δ
#pytests	77.07% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update d367350...2c35ea2. Read the comment docs.

[chrisjsewell]

thanks!