chore: added help text

Author: sbender9

signalk-flatten-delta.html

@@ -22,5 +22,16 @@
 </script>
 
 <script type="text/x-red" data-help-name="signalk-flatten-delta">
-    <p>A simple node that converts the message payloads into all lower-case characters</p>
+  <p>Function that flatten deltas from signalk-on-delta.</p>
+
+  <p>The output payload with be have path, value, source and context:</p>
+
+<pre><code class="javascript">
+{
+  "path":"navigation.speedOverGround",
+  "value":2.45,
+  "source":{"label":"actisense","type":"NMEA2000","pgn":129026,"src":"3",
+  "context": "vessels.self"
+}
+</code></pre>
 </script>

signalk-notification.html

@@ -39,5 +39,20 @@
 </script>
 
 <script type="text/x-red" data-help-name="signalk-notification">
-    <p>A simple node that converts the message payloads into all lower-case characters</p>
+<p>Input that sends a message when a notification is received. Configuration allows messages for a specific notification or any notification. The notification state can also be specified. Payload will be the notification path and value.</p>
+
+<pre><code class="javascript">
+{
+  "path: "notifications.anchorAlarm",
+  "value" : {
+    "state" : "emergency",
+    "method" : [
+      "visual",
+      "sound"
+    ],
+    "timestamp" : "2018-06-15T15:01:55.007Z",
+    "message" : "Anchor Alarm - Emergency"
+  }
+}
+</code></pre>
 </script>

signalk-on-delta.html

@@ -22,5 +22,5 @@
 </script>
 
 <script type="text/x-red" data-help-name="signalk-on-delta">
-    <p>A simple node that converts the message payloads into all lower-case characters</p>
+    <p>Input that sends messages for every delta the server receives</p>
 </script>

signalk-send-delta.html

@@ -23,5 +23,5 @@
 </script>
 
 <script type="text/x-red" data-help-name="signalk-send-delta">
-    <p>A simple node that converts the message payloads into all lower-case characters</p>
+  <p>Output that sends a delta to the server. Input should be a fully formed SignalK delta</p>
 </script>

signalk-send-pathvalue.html

@@ -23,5 +23,13 @@
 </script>
 
 <script type="text/x-red" data-help-name="signalk-send-pathvalue">
-    <p>A simple node that converts the message payloads into all lower-case characters</p>
+
+  <p>Output that sends a delta through the server. Input should be path and value</p>
+
+<pre><code class="javascript">  
+{
+  "path":"navigation.speedOverGround",
+  "value":20.45
+}
+</code></pre>
 </script>

signalk-send-put.html

@@ -28,5 +28,5 @@
 </script>
 
 <script type="text/x-red" data-help-name="signalk-send-put">
-    <p>A simple node that converts the message payloads into all lower-case characters</p>
+  <p>Output that send a SignalK put request via `app.putSelfPath`. Input should be the value to put.</p>
 </script>