Typo in the 3.0 spec

Near the end of the [values section](https://webassembly.github.io/spec/core/syntax/values.html#id2) the spec reads `Where clear from context, shorthands like {+1} denote floating point values like {+(1 + 1 \cdot {2^{{-M}}}) \cdot {2^{0}}}` I believe it should be instead `Where clear from context, shorthands like {+1} denote floating point values like {+(1 + 0 \cdot {2^{{-M}}}) \cdot {2^{0}}}`