* updating registries and files replacing space and underscore with dash
* Change more paths and file names to use dash instead of underscore
* Add hook scripts, bug reporting and generic upgrade guides to TOC
Co-authored-by: adityaramteke <adityaramteke05icr@gmail.com>
Attempted to not copy the guide as is, like previous iterations
and instead pointed to the 4.1 guide, as procedure remains the
same.
Signed-off-by: ShyamsundarR <srangana@redhat.com>
