fix pypdf2 in README

5 jobs for master in 5 minutes and 38 seconds (queued for 2 seconds)
Status Name Job ID Coverage
  Build
passed build #1645331

00:02:45

 
  Deploy
passed pages #1645332

00:00:44

passed pages:deploy

00:00:03

 
  Test
passed test #1645333

00:01:18

passed test-coverage #1645334

00:02:06

92.0%