docs: various fixes in Rust code documentation

- add backticks on struct doc comments
lint message: unclosed HTML tag `M`
- add a blanck line for proper doc formating
lint message: doc list item without indentation
help: if this is supposed to be its own paragraph, add a blank line
help: for further information visit https://rust-lang.github.io/rust-clippy/rust-1.92.0/index.html#doc_lazy_continuation
- fix hyperlink in doc + one url invalid
lint message: this URL is not a hyperlink
note: bare URLs are not automatically turned into clickable links
- ajust space in doc
lint message: doc list item overindented
help: for further information visit https://rust-lang.github.io/rust-clippy/rust-1.92.0/index.html#doc_overindented_list_items

src/web/web_server.rs

@@ -543,7 +543,7 @@ impl RoutingResult {
 /// When a path ends with "/", we append the index name to match traditional web server behavior
 /// which is also AWS S3 behavior.
 ///
-/// Check: https://docs.aws.amazon.com/AmazonS3/latest/userguide/IndexDocumentSupport.html
+/// Check: <https://docs.aws.amazon.com/AmazonS3/latest/userguide/IndexDocumentSupport.html>
 fn path_to_keys(
 	path: &str,
 	index: &str,