Adding link to l2met formatter
Merge pull request #16 from meatballhat/adding-l2met-third-party-formatter

Adding link to l2met formatter
readme: consistent third party formatters
readme: add copy pasta example
space out the walrus from the travis badge a bit
Merge pull request #18 from charliesome/spacing-tweak

Space out the walrus from the travis badge a bit
Switching non-TTY text formatter to use %q instead of '%v'

so that the output becomes l2met compatible yey!
Adjusting README to account for quote style change in non-TTY text format

plus removing link to external `l2met` formatter, as it is no longer
necessary.