Add RockyLinux.md

RockyLinux.md

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+
+
+```sh
+dnf update
+dnf install epel-release
+dnf install elrepo-release
+dnf install rpmfusion-free-release
+```
+
+```sh
+dnf install vim git zip htop iftop btop hdparm stress
+```
+
+Test
+
+```sh
+hdparm -t  /dev/nvme0n1p1 # check disk
+btop
+stress -c 4 -i 2 -d 1
+```
+
+