doc(dev) Add precision to install gcc-c++ for Fedora

Replace yum with dnf
Fix markdown
7 jobs for !1393 with 1426_allow_wider_node_vers in 20 minutes and 47 seconds (queued for 9 seconds)
detached
Status Job ID Name Coverage
  Tests
passed #53988
redshift
tests

00:15:58

69.33%
 
  Package
manual #53990
redshift allowed to fail manual
package:test:docker-test-image
manual #53989
redshift allowed to fail manual
releases:test
 
  Quality
passed #53992
redshift
audit_dependencies

00:01:48

passed #53991
redshift
fmt_and_clippy

00:04:48

 
  Integration
manual #53993
redshift allowed to fail manual
sync_g1
manual #53994
redshift allowed to fail manual
sync_gtest