Update documentation.

Author: objecthub

README.md

@@ -74,8 +74,8 @@ _LispKit_ provides support for the following core features, many of which are ba
     [`(lispkit control)`](https://github.com/objecthub/swift-lispkit/wiki/LispKit-Control),
     [`(lispkit system)`](https://github.com/objecthub/swift-lispkit/wiki/LispKit-System),
     [`(lispkit system call)`](https://github.com/objecthub/swift-lispkit/wiki/LispKit-System-OS),
-    `(lispkit system keychain)`,
-    `(lispkit system pasteboard)`, 
+    [`(lispkit system keychain)`](https://github.com/objecthub/swift-lispkit/wiki/LispKit-System-Keychain),
+    [`(lispkit system pasteboard)`](https://github.com/objecthub/swift-lispkit/wiki/LispKit-System-Pasteboard),
     [`(lispkit box)`](https://github.com/objecthub/swift-lispkit/wiki/LispKit-Box),
     [`(lispkit math)`](https://github.com/objecthub/swift-lispkit/wiki/LispKit-Math),
     [`(lispkit math matrix)`](https://github.com/objecthub/swift-lispkit/wiki/LispKit-Math-Matrix),
@@ -109,8 +109,9 @@ _LispKit_ provides support for the following core features, many of which are ba
     [`(lispkit stream)`](https://github.com/objecthub/swift-lispkit/wiki/LispKit-Stream),
     [`(lispkit thread)`](https://github.com/objecthub/swift-lispkit/wiki/LispKit-Thread),
     [`(lispkit thread channel)`](https://github.com/objecthub/swift-lispkit/wiki/LispKit-Thread-Channel),
-    `(lispkit thread future)`,
-    `(lispkit thread shared-queue)`,
+    [`(lispkit thread future)`](https://github.com/objecthub/swift-lispkit/wiki/LispKit-Thread-Future),
+    [`(lispkit thread shared-queue)`](https://github.com/objecthub/swift-lispkit/wiki/LispKit-Thread-Shared-Queue),
+    [`(lispkit url)`](https://github.com/objecthub/swift-lispkit/wiki/LispKit-Url),
     [`(lispkit graph)`](https://github.com/objecthub/swift-lispkit/wiki/LispKit-Graph),
     [`(lispkit match)`](https://github.com/objecthub/swift-lispkit/wiki/LispKit-Match),
     [`(lispkit iterate)`](https://github.com/objecthub/swift-lispkit/wiki/LispKit-Iterate),
@@ -136,12 +137,12 @@ _LispKit_ provides support for the following core features, many of which are ba
     [`(lispkit archive tar)`](https://github.com/objecthub/swift-lispkit/wiki/LispKit-Archive-Tar),
     [`(lispkit archive zip)`](https://github.com/objecthub/swift-lispkit/wiki/LispKit-Archive-Zip),
     [`(lispkit crypto)`](https://github.com/objecthub/swift-lispkit/wiki/LispKit-Crypto),
-    `(lispkit json)`,
-    `(lispkit json schema)`,
-    `(lispkit http)`,
-    `(lispkit http server)`,
-    `(lispkit http oauth)`,
-    `(lispkit serialize)`,
+    [`(lispkit json)`](https://github.com/objecthub/swift-lispkit/wiki/LispKit-JSON),
+    [`(lispkit json schema)`](https://github.com/objecthub/swift-lispkit/wiki/LispKit-JSON-Schema),
+    [`(lispkit http)`](https://github.com/objecthub/swift-lispkit/wiki/LispKit-HTTP),
+    [`(lispkit http server)`](https://github.com/objecthub/swift-lispkit/wiki/LispKit-HTTP-Server),
+    [`(lispkit http oauth)`](https://github.com/objecthub/swift-lispkit/wiki/LispKit-HTTP-OAuth),
+    [`(lispkit serialize)`](https://github.com/objecthub/swift-lispkit/wiki/LispKit-Serialize),
     `(lispkit sxml)`,
     `(lispkit sxml xml)`,
     `(lispkit sxml html)`,