fix regex logical or documentation (#27637)

* fix regex logical or documentation

Co-authored-by: Kristin Laemmert <mildwonkey@users.noreply.github.com>
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Stephen 2021-02-08 08:04:38 -08:00 committed by GitHub
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@ -73,7 +73,7 @@ of the pattern must be escaped as `\\`.
| `\PN` | The opposite of `\pN` |
| `\P{Greek}` | The opposite of `\p{Greek}` |
| `xy` | `x` followed immediately by `y` |
| `x|y` | either `x` or `y`, preferring `x` |
| <code>x&#124;y</code> | either `x` or `y`, preferring `x` |
| `x*` | zero or more `x`, preferring more |
| `x*?` | zero or more `x`, preferring fewer |
| `x+` | one or more `x`, preferring more |