v0.1.3

Changed

• Package description and keywords rewritten around what people actually search
  for. resume-linter had no package competing for it at all, while markdown resume is crowded — so the wording leads with the linting and page-fit work
  rather than with rendering, which is the part everyone already does.
• README opens by stating what the tool does differently, and adds a section
  comparing it with the existing Markdown resume renderers, including when to use
  one of those instead.
• Image alt text now describes the resumes shown rather than repeating the tool name.