Correction to RedHat/CentOS/Fedora install info

[humantex]

According to the commands presented on https://flight-manual.atom.io/getting-started/sections/installing-atom/ - the yum line for installation is incorrect and will result in a "no pakage found" error when using a repository as a source

The current line reads:
sudo yum install -y atom.x86_64.rpm

And should be changed to:
sudo yum install -y atom

This was the only solution possible to successfully download and install the current atom-1.32.1-0.1.x86_64 version on CentOS 7.5.1804.