Update Zcash description

[ajs-xmr]

Description

Updated Zcash description to include a caution to highlight the fact that the privacy feature of Zcash is not automatic and requires users to generate a z-addr. Although some service providers like Shapeshift support z-addr, the majority of pools, light wallets, and exchanges only use t-addr, so new users should be warned of the difference.

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[kewde]

Hmm, this a tough one..

The information is accurate, I would however reword it to a much simpler sentence:
"Use z-addresses for anonymity."

I think it's generally a bad idea to go down this path of giving what I call "opsec" advice.
There are a thousand ways to screw up using any privacy application..

Honestly, I'd love to see clear cut tutorials on how to use certain tools and then have a link to it on privacytools.io, @Shifterovich is doing exactly that at the moment. I think this kind of information is a lot more appropriate there?

Extending the concept of warnings if we apply this principle of adding information on how to use a tool directly on privacytoolsIO:
Should we add a warning "do not log into facebook and other personal websites" to Tor Browser?
Should we add a warning "Stores your phone number on their server" to Signal et al?
Should we add a warning "Requires you to wait X amount of days before spending coins again" to Monero (timing analysis attacks)?

[ghost]

Indeed, nearly finished with the theory (like explaining crypto terms), so I'll start writing step-by-step tutorials for specific tools soon.

And I agree with your final suggestion. We could do that via some Bootstrap labels. Speaking of labels, #146

[privacytoolsIO]

#269