docs: Add comments to handler methods (#2188)

* add docs

* more docs

* add more docs

* few nits

Author: rakita

bins/revme/src/dir_utils.rs

@@ -5,7 +5,12 @@ pub fn find_all_json_tests(path: &Path) -> Vec<PathBuf> {
     WalkDir::new(path)
         .into_iter()
         .filter_map(|e| e.ok())
-        .filter(|e| e.file_name().to_string_lossy().ends_with(".json"))
+        .filter(|e| {
+            e.path()
+                .extension()
+                .map(|ext| ext == "json")
+                .unwrap_or(false)
+        })
         .map(DirEntry::into_path)
         .collect::<Vec<PathBuf>>()
 }

crates/context/interface/src/transaction/transaction_type.rs

@@ -13,7 +13,7 @@ pub enum TransactionType {
     Eip4844,
     /// EIP-7702 Set EOA account code transaction type
     Eip7702,
-    /// Custom type means that transaction trait was extend and have custom types
+    /// Custom type means that the transaction trait was extended and has custom types
     Custom,
 }