Add some comments

src/macros.rs

@@ -1,3 +1,4 @@
+/// Unwrap a Result, and log the error.
 #[macro_export]
 macro_rules! try_log {
 	($e:expr, $($arg:tt)*) => {
@@ -27,7 +28,7 @@ macro_rules! try_print {
 	};
 }
 
-/// Unwrap a Result<T, E>, if it's an error then let client know and return.
+/// Unwrap a `Result<T, E>`, if it's an error then let client know and return.
 #[macro_export]
 macro_rules! try_send_error {
 	($i:ident, $e:expr) => {
@@ -46,6 +47,7 @@ macro_rules! try_send_error {
 	};
 }
 
+/// Unwrap a `Result<Option<T>, E>`, log message if it's error or none
 #[macro_export]
 macro_rules! try_option_send_error {
 	($i:ident, $e:expr) => {