feat(core): created a new rule that resolves #414

[elijah-potter]

I've created a new rule that should cover #414. From here, we mostly just need a couple more test cases.

You'll notice that I set it to be enabled by default in the LintGroup. If you disagree with this decision, let me know and I'd be happy to change it.

[ccoVeille]

LGTM*

*I have 24 years experience in copy-paste and reverse engineering, and I think I could review your PR in Rust, while I have never coded any line of Rust

[hippietrail]

You can check against this instance in the harper codebase in architecture/page.md

- [Parser](https://docs.rs/harper-core/latest/harper_core/parsers/trait.Parser.html): A trait that describes an object that consumes text and emits tokens. The name is somewhat of a misnomer since it is supposed to only lex English (and emit [Tokens](https://docs.rs/harper-core/latest/harper_core/struct.Token.html)), not parse it. It is called a parser since most types that implement this trait parse _other_ languages (JavaScript) to extract the English text.

I'm not submitting a PR to fix this one because "kids these days" almost certainly don't consider it an area. But you may of course choose to fix it if you wish (-:

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By the way, is there an easy way to test this? I have a clone of the repo but I haven't attempted to build it yet because I hate build systems and every new project I play with these days has a new build system that entails a day or two down an unfun rabbithole when I could be doing fun OSS coding instead (-:

[elijah-potter]

By the way, is there an easy way to test this? I have a clone of the repo but I haven't attempted to build it yet because I hate build systems and every new project I play with these days has a new build system that entails a day or two down an unfun rabbithole when I could be doing fun OSS coding instead (-:

In #471, I've added a page that should explain some of this. Mind taking a look?

[hippietrail]

#471

I must be a dummy but how do I get to the file to read it? No matter how I click on any link I can find from the PR link I'm only seeing things like diffs.