nix: set up project-wide formatter

Signed-off-by: NotAShelf <raf@notashelf.dev>
Change-Id: I4806c58aa0a17f504c9312723ad770166a6a6964

examples/plugins/markdown-metadata/README.md

@@ -1,10 +1,12 @@
 # Markdown Metadata Extractor Plugin
 
-This example plugin demonstrates how to create a metadata extractor plugin for Pinakes.
+This example plugin demonstrates how to create a metadata extractor plugin for
+Pinakes.
 
 ## Overview
 
 The Markdown Metadata Extractor enhances Pinakes' built-in markdown support by:
+
 - Parsing YAML and TOML frontmatter
 - Extracting metadata from frontmatter fields
 - Converting frontmatter tags to Pinakes media tags
@@ -12,8 +14,10 @@ The Markdown Metadata Extractor enhances Pinakes' built-in markdown support by:
 
 ## Features
 
-- **Frontmatter Parsing**: Supports both YAML (`---`) and TOML (`+++`) frontmatter formats
-- **Tag Extraction**: Automatically extracts tags from frontmatter and applies them to media items
+- **Frontmatter Parsing**: Supports both YAML (`---`) and TOML (`+++`)
+  frontmatter formats
+- **Tag Extraction**: Automatically extracts tags from frontmatter and applies
+  them to media items
 - **Custom Fields**: Preserves all frontmatter fields as custom metadata
 - **Configuration**: Configurable via `plugin.toml` config section
 
@@ -88,6 +92,7 @@ The plugin can be configured through the `config` section in `plugin.toml`:
 ## Security
 
 This plugin has minimal capabilities:
+
 - **Filesystem**: No write access, read access only to files being processed
 - **Network**: Disabled
 - **Environment**: No access