Preparation for sharing

- rustfmt
- clippy
- comments
- README

src/foreign_macros/atomic_defaults.rs

@@ -1,13 +1,16 @@
 #[allow(unused)] // for the doc comments
 use crate::foreign::Atomic;
 
-/// A macro that generates the straightforward, syntactically invariant part of implementing
-/// [Atomic]. Implemented fns are [Atomic::as_any], [Atomic::definitely_eq] and [Atomic::hash].
-/// 
+/// A macro that generates the straightforward, syntactically invariant part of
+/// implementing [Atomic]. Implemented fns are [Atomic::as_any],
+/// [Atomic::definitely_eq] and [Atomic::hash].
+///
 /// It depends on [Eq] and [Hash]
 #[macro_export]
 macro_rules! atomic_defaults {
   () => {
-    fn as_any(&self) -> &dyn std::any::Any { self }
+    fn as_any(&self) -> &dyn std::any::Any {
+      self
+    }
   };
-}
+}