docs: fix typo in repositories (#6942)

# Pull Request Check List

Resolves: #issue-number-here

<!-- This is just a reminder about the most common mistakes. Please make
sure that you tick all *appropriate* boxes. But please read our
[contribution guide](https://python-poetry.org/docs/contributing/) at
least once, it will save you unnecessary review cycles! -->

- [ ] Added **tests** for changed code.
- [x] Updated **documentation** for changed code.

<!-- If you have *any* questions to *any* of the points above, just
**submit and ask**! This checklist is here to *help* you, not to deter
you from contributing! -->

Co-authored-by: Mathieu Kniewallner <[email protected]>

Author: chohner

docs/repositories.md

@@ -249,7 +249,7 @@ manifest as long dependency resolution times when adding packages from this sour
 
 {{% /warning %}}
 
-These package sources maybe configured via the following command in your project.
+These package sources may be configured via the following command in your project.
 
 ```bash
 poetry source add testpypi https://test.pypi.org/simple/
@@ -286,7 +286,7 @@ inspecting it locally is the only remaining option.
 Some projects choose to release their binary distributions via a single page link source that
 partially follows the structure of a package page in [PEP 503](https://peps.python.org/pep-0503/).
 
-These package sources maybe configured via the following command in your project.
+These package sources may be configured via the following command in your project.
 
 ```bash
 poetry source add jax https://storage.googleapis.com/jax-releases/jax_releases.html