The $abc$ conjecture as a special case of Vojta's height inequality

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From Quanta I've learned that Peter Scholze and Jakob Stix rejected Shinichi Mochizuki's proof of the $abc$ conjecture in September 2018.

As a non-expert one stumbles a little earlier than necessary over the introductory paragraphs of Scholze/Stix' paper:

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While Masser-Oesterlé's Conjecture 1 (the $abc$ conjecture itself) is explicitly given and quite easy to understand, it's not at all clear (to the non-expert) what Vojta's height inequality says, and why and in which sense Conjecture 1 is a special case of it.

Please help me to see why and how the $abc$ conjecture is a special case of Vojta's height inequality for the projective line $\mathbb{P}^1_\mathbb{Q}$ with respect to the divisor $D = 0 + 1 + \infty$*.

What especially do for, with respect to, and divisor $D = 0 + 1 + \infty$ mean in this context?

(Please assume that I know what the projective line $\mathbb{P}^1_\mathbb{Q}$ is.)