fix link in readme

4 jobs for fix_docker_image in 5 minutes and 10 seconds
Status Job ID Name Coverage
  Analyze
passed #106144321
dartanalyze

00:01:44

passed #106144320
dartfmt

00:01:44

 
  Test
passed #106144322
test_in_vm

00:01:33

 
  Coverage
passed #106144323
get_coverage

00:01:52

100.0%