✨ Non workflow commits [Backport release/0.2.z] (#26)

# Description
Backport of #25 to `release/0.2.z`.

Author: m-brophy

pkg/pr/src/prefix.rs

@@ -6,6 +6,7 @@ use regex::Regex;
 
 use crate::error::Result;
 
+//these prefixes in the PR title prevent validation failure
 const PREFIX_FEATURE: (&str, &str) = (":sparkles:", "✨");
 const PREFIX_BUG_FIX: (&str, &str) = (":bug:", "🐛");
 const PREFIX_DOCS: (&str, &str) = (":book:", "📖");
@@ -126,6 +127,7 @@ mod tests {
     }
 
     #[test]
+    //test title validation
     fn title_cases() {
         let test_cases = vec![
             TestCase {