dev-ml/*: improve metadata

Signed-off-by: Alessandro Barbieri <lssndrbarbieri@gmail.com>

dev-ml/tls/metadata.xml

@@ -6,11 +6,34 @@
 		<email>lssndrbarbieri@gmail.com</email>
 		<name>Alessandro Barbieri</name>
 	</maintainer>
-	<upstream>
-		<remote-id type="github">mirleft/ocaml-tls</remote-id>
-	</upstream>
 	<use>
 		<flag name="async">Async laye</flag>
 		<flag name="mirage">MirageOS layer</flag>
 	</use>
+	<longdescription lang="en">Transport Layer Security (TLS) is probably the most widely deployed security
+protocol on the Internet. It provides communication privacy to prevent
+eavesdropping, tampering, and message forgery. Furthermore, it optionally
+provides authentication of the involved endpoints. TLS is commonly deployed for
+securing web services ([HTTPS](http://tools.ietf.org/html/rfc2818)), emails,
+virtual private networks, and wireless networks.
+
+TLS uses asymmetric cryptography to exchange a symmetric key, and optionally
+authenticate (using X.509) either or both endpoints. It provides algorithmic
+agility, which means that the key exchange method, symmetric encryption
+algorithm, and hash algorithm are negotiated.
+
+Read [further](https://nqsb.io) and our [Usenix Security 2015 paper](https://usenix15.nqsb.io).</longdescription>
+	<upstream>
+		<doc>https://mirleft.github.io/ocaml-tls/doc</doc>
+		<bugs-to>https://github.com/mirleft/ocaml-tls/issues</bugs-to>
+		<remote-id type="github">mirleft/ocaml-tls</remote-id>
+		<maintainer>
+			<name>Hannes Mehnert</name>
+			<email>hannes@mehnert.org</email>
+		</maintainer>
+		<maintainer>
+			<name>David Kaloper</name>
+			<email>david@numm.org</email>
+		</maintainer>
+	</upstream>
 </pkgmetadata>