Update README

README.md

@@ -1,7 +1,9 @@
 <div align="center">
   <h1><code>moveref</code></h1>
   <p>
-    <strong>Types and traits for C++ style placement initialization and move semantics</strong>
+    <strong>Types and traits for safe C++ style placement initialization and move semantics</strong>
+    <br />
+    <sub>Acknowledgement: originally based on <a href="https://github.com/google/moveref">google/moveref</a></sub>
   </p>
   <p style="margin-bottom: 0.5ex;">
     <a href="https://silvanshade.github.io/moveref/moveref"><img
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         /></a>
   </p>
 </div>
+
+## Status
+
+This crate is considered stable and suitable for normal usage.
+
+The internals are fully documented and test coverage aims to be as complete as possible.
+
+We additionally check the crate with [cargo careful](https://github.com/RalfJung/cargo-careful), [cargo miri](https://github.com/rust-lang/miri), and [cargo valgrind](https://github.com/jfrimmel/cargo-valgrind).