Rebuild docs to make them easier to maintain

_posts/2000-01-02-PubSubClient1.md

@@ -0,0 +1,23 @@
+---
+tag: api
+type: constructor
+name: PubSubClient
+params:
+  - name: client
+    description: the network client to use, for example <code>WiFiClient</code>
+---
+
+
+Creates a partially initialised client instance.
+
+Before it can be used, the server details must be configured:
+
+```
+EthernetClient ethClient;
+PubSubClient client(ethClient);
+
+void setup() {
+    client.setServer("broker.example.com",1883);
+    // client is now ready for use
+}
+```