Rebuild docs to make them easier to maintain

_posts/2000-04-01-subscribe.md

@@ -0,0 +1,23 @@
+---
+tag: api
+type: function
+name: subscribe
+params:
+- name: topic
+  description: the topic to subscribe to
+  type: const char[]
+- name: qos
+  optional: true
+  description: the qos to subscribe at
+  type: 'int: 0 or 1 only'
+returns:
+  type: boolean
+  values:
+    - value: 'false'
+      description: sending the subscribe failed, either connection lost or message too large
+    - value: 'true'
+      description: sending the subscribe succeeded
+---
+
+Subscribes to messages published to the specified topic.
+