Further readme updates

Author: stalleyj

README.md

@@ -106,7 +106,7 @@ It also adds the `node-hc` command to another directory tied to your Node.js SDK
 <a name="config"></a>
 ### Configuring Node Application Metrics
 
-Node Application Metrics can be configured in two ways, by using the configuration file described below or via a call to configure(Object).
+Node Application Metrics can be configured in two ways, by using the configuration file described below or via a call to configure(options).
 
 Node Application Metrics comes with a configuration file inside the [module installation directory](#install) (`.../node_modules/appmetrics/appmetrics.properties`). This can be used to configure connection options, logging and data source options. 
 
@@ -165,7 +165,7 @@ monitoring.on('cpu', function (cpu) {
 
 ## Health Center Eclipse IDE client
 ### Connecting to the client
-Connecting to the Health Center client requires the additional installation of a MQTT broker. The Node Application Metrics agent sends data to the MQTT broker specified in the `appmetrics.properties` file or set via a call to configure(Obect). Installation and configuration documentation for the Health Center client is available from the [Health Center documentation in IBM Knowledge Center][2].
+Connecting to the Health Center client requires the additional installation of a MQTT broker. The Node Application Metrics agent sends data to the MQTT broker specified in the `appmetrics.properties` file or set via a call to configure(options). Installation and configuration documentation for the Health Center client is available from the [Health Center documentation in IBM Knowledge Center][2].
 
 Note that both the API and the Health Center client can be used at the same time and will receive the same data. Use of the API requires a local install and application modification (see *[Modifying your application to use the local installation](#run-local)*).
 
@@ -175,12 +175,12 @@ Further information regarding the use of the Health Center client with Node Appl
 ## API Documentation
 ### appmetrics.configure(options)
 Sets various properties on the appmetrics monitoring agent. If the agent has already been started, this function does nothing. 
-* `options'(Object) key value pairs of properties and values to be set on the monitoring agent. 
+* `options`(Object) key value pairs of properties and values to be set on the monitoring agent. 
 
 Property name              | Property value            | Effect
 :--------------------|:-------------------------|:-----------------------------
  `applicationID`              | `string`      | Specifies a unique identifier for the mqtt connection             
- `mqtt`          | `[off|on]`         | Specifies whether the monitoring agent sends data to the mqtt broker
+ `mqtt`          | `[off|on]`         | Specifies whether the monitoring agent sends data to the mqtt broker. The default value is on
  `mqttHost`             | `host name`         | Specifies the host name of the mqtt broker
  `mqttPort` | `port number`              | Specifies the port number of the mqtt broker
  `profiling` | `[off|on]`              | Specifies whether method profiling data will be captured. The default value is off