doc: update link target (#3218)

This fixes a link target found by the link checker CI for lean-lang.org
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David Thrane Christiansen 2024-01-26 11:20:22 +01:00 committed by GitHub
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@ -60,7 +60,7 @@ While parsing `a * (b + c)`, `(b + c)` is assigned a precedence `60` by the addi
the right argument to have precedence **at least** 71. Thus, this parse is invalid. In contrast, `(a * b) + c` assigns
a precedence of `70` to `(a * b)`. This is compatible with addition which expects the left argument to have precedence
**at least `60` ** (`70` is greater than `60`). Thus, the string `a * b + c` is parsed as `(a * b) + c`.
For more details, please look at the [Lean manual on syntax extensions](./syntax.md#notations-and-precedence).
For more details, please look at the [Lean manual on syntax extensions](./notation.md#notations-and-precedence).
To go from strings into `Arith`, we define a macro to
translate the syntax category `arith` into an `Arith` inductive value that