Problem rendering pipe characters in code blocks within tables

Hello, thank you heartily for this great library. It took me quite few months to encounter a bug, which I am reporting here.

Mistletoe seems unable to render pipe characters in code blocks within tables. Here is an example of observed behavior:

mistletoe [version 0.7.2] (interactive)
Type Ctrl-D to complete input, or Ctrl-C to exit.
>>> | Table | Header |
... |---    |---     |
... | `<|>` | `<|>`  |
...
... ^Z

<table>
<thead>
<tr>
<th align="left">Table</th>
<th align="left">Header</th>
</tr>
</thead>
<tbody>
<tr>
<td align="left">`&lt;</td>
<td align="left">&gt;`</td>
<td align="left">`&lt;</td>
<td align="left">&gt;`</td>
</tr>
</tbody>
</table>
>>>

The following was my expected rendering:

Table	Header
<|>	<|>

Interestingly, this behavior can not be expected in GFM, which requires escapes for pipes: https://github.com/github/markup/issues/1078

However, escaping pipes is not working in mistletoe:

>>> | Table | Header |
... |---    |---     |
... |`<\|>` | `<\|>` |
... ^Z

<table>
<thead>
<tr>
<th align="left">Table</th>
<th align="left">Header</th>
</tr>
</thead>
<tbody>
<tr>
<td align="left">`&lt;\</td>
<td align="left">&gt;`</td>
<td align="left">`&lt;\</td>
<td align="left">&gt;`</td>
</tr>
</tbody>
</table>

[pbodnar]

That seems perfectly reasonable to me,

OK, thank you for your feedback, I think I will look at this next week then.

I should add that I am very happy and grateful to see this nice library brought to life again.

Yes, I was given write permissions by @miyuchina who seems to like my contributions, so hopefully I can bring the library a little bit further, even though it may have lost some users in the previous years. I take it as a challenge. 😃

[pbodnar]

No problem, thank you. 👍