Move Redis on Flash procedure later in docs

[JeffreyGroves]

Problem with documentation: The file /opt/redislabs/sbin/prepare_flash.sh is only extracted as part of the ./install.sh execution, so it is impossible to run it prior to step 4 Answer the installation questions

Solution: The Redis on Flash part should be moved from the Prepare to install on Linux section to the Install on Linux section, after step 4 Answer the installation questions... and before step 5. Create or join an existing...

Please let me know if you have any questions or concerns. Kind regards,

Jeff Groves

[CLAassistant]

All committers have signed the CLA.

[lanceleonard]

Hi @JeffreyGroves! Thanks for the contribution.

I see where you're going with this. I'm not sure that moving the entire section is the right answer, but I will work our PM team to figure out the right way to present this info.

[nermiller]

@JeffreyGroves please sign the CLA. Thank you!

[JeffreyGroves]

Sorry for the delay in signing the CLA. I have just completed it.

[rrelledge]

Closing this PR without merging since #2965 fixes this.