Unwanted <p> tag in list item if line break follows

# Problem

## Environments Effected

- [x] The site generated by GitHub Pages
- [x] Building sites locally

### Detail

```rb
-* [nodeJS, express, Docker Compose](//github.com/4richardchen/gotenna) - code
-{% for post in site.posts %}{% unless post.tags contains "answer" or post.published == false or post.tags contains 'unanswered' %}
```
yields incorrect markup
```htm

nodeJS, express, Docker Compose - code

```
but then
```rb
* [nodeJS, express, Docker Compose](//github.com/4richardchen/gotenna) - code{% for post in site.posts %}{% unless post.tags contains "answer" or post.published == false or post.tags contains 'unanswered' %}
```
yields correct markup
```htm

nodeJS, express, Docker Compose - code

```

### What did you expect to happen?

no excess `

` tag in markup (_see above_)

### What happened instead?

1 excess `

` tag in markup (_see above_)

### Additional information

* Link to the live site: Correct markup now at https://4richardchen.github.io.
* Link to the source repo: I fixed it in [this commit](https://github.com/4richardchen/4richardchen.github.com/commit/1c9c99fedc240f03b96de08de4306ace70fa81f3) at [this repo](https://github.com/4richardchen/4richardchen.github.com/commits/master).