Implicit broadcasting is still in the docs

[mlhetland]

From the docs

Most of the binary arithmetic operators listed above also operate elementwise when one argument is scalar: -, +, and * when either argument is scalar, and / and \ when the denominator is scalar. For example, [1, 2] + 3 == [4, 5] and [6, 4] / 2 == [3, 2].

This is no longer true in 1.0. I didn't immediately have any obvious replacement – hence the issue and not a PR. I guess it ought to be replaced with a discussion of dotted operators, but the dot syntax is discussed in the following paragraphs, as an additional concept, so I guess a slight rewrite might be called for?

[timziebart]

Actually, I just read through that section and I would suggest to simply remove that paragraph. Then the whole section makes sense and is consistent. Shall I do that and submit a PR?

Edit: The "Additionally" in the following paragraph needs to be removed, too.

[timziebart]

The corresponding PR is merged and this Issue can be closed. (Seemingly, I cannot do that)