Add package documentation page

Author: DiogoRibeiro7

_data/navigation.yml

@@ -19,4 +19,6 @@ main:
   # - title: "Sitemap"
   #   url: /sitemap/
   - title: "Code Download"
-    url: /code/
+    url: /code/
+  - title: "Package Docs"
+    url: /docs/

_pages/package-docs.md

@@ -0,0 +1,16 @@
+---
+layout: single
+title: "Package Documentation"
+permalink: /docs/
+author_profile: true
+---
+
+This page collects links to documentation for the packages I maintain. When available, documentation is hosted online. Otherwise it will be stored directly in this repository.
+
+## Packages
+
+- [**frontmatter**]({{ '/docs/frontmatter/' | relative_url }})
+
+---
+
+Feel free to reach out at [[email protected]](mailto:[email protected]) for professional enquiries or [[email protected]](mailto:[email protected]) for personal matters. My ORCID is [0009-0001-2022-7072](https://orcid.org/0009-0001-2022-7072) and I’m affiliated with **ESMAD - Instituto Politécnico do Porto**.

docs/frontmatter/index.md

@@ -0,0 +1,8 @@
+---
+layout: single
+title: "frontmatter package"
+parent: Package Documentation
+nav_order: 1
+---
+
+Detailed documentation for the **frontmatter** Python package will be provided here.