v0.5a7 Improved `report` output; Began pandas section of documentation

What's Changed

• Starting documentation on loading csv files into pandas by @dvklopfenstein in #51
• Move pandas.md to source dir so mkdocs can see itj by @dvklopfenstein in #52
• Improved report output by @dvklopfenstein in #53

Full Changelog: v0.5a6...v0.5a7