Implove CLI docs

[peckjon]

Eventually, we should add a whole CLI section. For now, current algodev language guides make a brief mention of CLI workflow. Should be expanded, and declared as preferential to web-IDE workflow:

• curl -sSLf https://algorithmia.com/install.sh | sh
• curl algorithmia.com
• algo clone username/algoname
• open in IDE, edit
• algo runlocal -D [JSON FILE]
• once you're happy, git commit and push
• algo run username/algoname/[SHA from push] -D [JSON FILE]
• to publish, go to web

Also rewrite AND KILL https://blog.algorithmia.com/getting-started-with-the-algorithmia-command-line/ as per https://algorithmia.com/developers/clients/cli/

[peckjon]

Annotation added to https://blog.algorithmia.com/getting-started-with-the-algorithmia-command-line/ ... will do a new CLI post once publish-via-CLI feature is completed.