format: Remove video timing param from ulrs and escape pipes from titles

Addresses EbookFoundation#6723

Author: davorpa

Diff for: courses/free-courses-en.md

@@ -382,8 +382,8 @@
 * [Docker](https://www.youtube.com/playlist?list=PLhW3qG5bs-L99pQsZ74f-LC-tOEsBp2rK) - Raghav Pal
 * [Docker Tutorial for Beginners ](https://www.youtube.com/playlist?list=PL6gx4Cwl9DGBkvpSIgwchk0glHLz7CQ-7) - Thenewboston
 * [Docker Tutorial for Beginners](https://www.youtube.com/watch?v=fqMOX6JJhGo) - FreeCodeCamp
-* [Docker Tutorial for Beginners [FULL COURSE in 3 Hours]](https://www.youtube.com/watch?v=3c-iBn73dDE&t=2721s) - TechWorld with Nana
-* [Docker Tutorial for Beginners | Full Course [2021]](https://www.youtube.com/watch?v=p28piYY_wv8) - Amigoscode
+* [Docker Tutorial for Beginners [FULL COURSE in 3 Hours]](https://www.youtube.com/watch?v=3c-iBn73dDE) - TechWorld with Nana
+* [Docker Tutorial for Beginners \| Full Course [2021]](https://www.youtube.com/watch?v=p28piYY_wv8) - Amigoscode
 * [Docker Tutorial Videos \| DevOps Tool](https://www.youtube.com/playlist?list=PL9ooVrP1hQOHUKuqGuiWLQoJ-LD25KxI5) - edureka!
 * [IIEC RISE 1.0 Docker](https://www.youtube.com/playlist?list=PLAi9X1uG6jZ30QGz7FZ55A27jPeY8EwkE)
 * [Learn Docker, Container Runtimes, Builders and Registries](https://www.katacoda.com/courses/container-runtimes) - Katacoda