added new screenshot and link to doc/why-what-how.md
Merge pull request #19 from dazz/link-documentation-to-readme

link-documentation-to-readme
fixed bug
displaying number of changed files and number of commits
displaying number of changed files, number of commits, additions and deletions
Merge pull request #20 from dazz/display-number-of-commits-and-files

display-number-of-commits-and-files
fix bug from missing target_url

instead of injecting the response from the url, just the url was set.
this leads to missing data in earlier records
Merge pull request #21 from dazz/fix-bug-from-missing-target_url

fix-bug-from-missing-target_url
Merge branch 'master' into changed-port-added-start-script

Conflicts:
	README.md