Fix escape markdown table

docs/regexp/fail-faster.md

@@ -4,12 +4,12 @@ Slow `RegExp` processing is usually caused by slow failure rather than slow matc
 
 Reduce the use of `|` using character classes and optional components, or by pushing the alternation further back into the `RegExp` (allowing some match attemps to fail before reaching the alternation):
 
-| Instead of    | Use            |
-|---------------|----------------|
-| `cat|bat`     | `[cb]at`       |
-| `red|read`    | `rea?d`        |
-| `red|raw`     | `r(?:ed|aw)`   |
-| `(.\|\r\|\n)` | `[\s\S]`       |
+| Instead of            | Use             |
+|-----------------------|-----------------|
+| cat|bat          | [cb]at          |
+| red|read         | rea?d           |
+| red|raw          | r(?:ed|aw) |
+| (.\|\r\|\n) | [\s\S]          |
 
 All people known `RegExp` are difficult to write. A good approach for write the right `RegExp` is automate the process.