This PR adds information on how to resize your images when contributing. It also applies a few formatting changes such as: - Using named links to reduce clutter - Folding the text at 80 characters for command line users - Removing dollar signs in codeblocks if no command output is provided [MD014][md014] [md014]: https://github.com/markdownlint/markdownlint/blob/master/docs/RULES.md#md014---dollar-signs-used-before-commands-without-showing-output
Fix typo