README.md: move security level legend next to table

Author: tarcieri

README.md

@@ -36,17 +36,6 @@ NOTE: the [`blake3`] crate implements the `digest` traits used by the rest of th
 [Security]: https://en.wikipedia.org/wiki/Hash_function_security_summary
 [:exclamation:]: #crate-names
 
-### Crate Names
-
-Whenever possible crates are published under the the same name as the crate folder.
-Owners of `md5` [declined](https://github.com/stainless-steel/md5/pull/) to participate in this project.
-This crate does not implement the [`digest`] traits, so it is not interoperable with the RustCrypto ecosystem.
-This is why we publish our MD5 implementation as `md-5` and mark it with the :exclamation: mark.
-Note that the library itself is named as `md5`, i.e. inside `use` statements you should use `md5`, not `md_5`.
-
-The SHA-1 implementation was previously published as `sha-1`, but migrated to `sha1` since v0.10.0.
-`sha-1` will continue to recieve v0.10.x patch updates, but will be deprecated after `sha1` v0.11 release.
-
 ### Security Level Legend
 
 The following describes the security level ratings associated with each hash function (i.e. algorithms, not the specific implementation):
@@ -59,6 +48,17 @@ The following describes the security level ratings associated with each hash fun
 
 See the [Security] page on Wikipedia for more information.
 
+### Crate Names
+
+Whenever possible crates are published under the the same name as the crate folder.
+Owners of `md5` [declined](https://github.com/stainless-steel/md5/pull/) to participate in this project.
+This crate does not implement the [`digest`] traits, so it is not interoperable with the RustCrypto ecosystem.
+This is why we publish our MD5 implementation as `md-5` and mark it with the :exclamation: mark.
+Note that the library itself is named as `md5`, i.e. inside `use` statements you should use `md5`, not `md_5`.
+
+The SHA-1 implementation was previously published as `sha-1`, but migrated to `sha1` since v0.10.0.
+`sha-1` will continue to recieve v0.10.x patch updates, but will be deprecated after `sha1` v0.11 release.
+
 ### Minimum Supported Rust Version (MSRV) Policy
 
 MSRV bumps are considered breaking changes and will be performed only with minor version bump.