changelog typo

CHANGELOG.md

@@ -4,21 +4,21 @@
 # Breaking changes
 
 ## Protocol changed [#86](https://github.com/ice-services/moleculer/issues/86)
-The Moleculer transportation protocol is changed. It's mean, **the new (>= v0.11) versions can't communicate with the old (<= c0.10.x) versions.**
+The Moleculer transportation protocol is changed. It means, **the new (>= v0.11) versions can't communicate with the old (<= v0.10.x) versions.**
 You can find more information about changes in [#86](https://github.com/ice-services/moleculer/issues/86) issue.
 
 ## Balanced events
-The whole event handling is rewritten. From now Moleculer supports [event driven architecture](http://microservices.io/patterns/data/event-driven-architecture.html). It means the event emits is balanced like action calls.
+The whole event handling is rewritten. From now Moleculer supports [event driven architecture](http://microservices.io/patterns/data/event-driven-architecture.html). It means the event emits are balanced like action calls.
 
 For example, you have 2 main services: `users` & `payments`. Both subscribe to the `user.created` event. You start 3 instances from `users` service and 2 instances from `payments` service. If you emit the event with `broker.emit('user.created')`, broker will grouping & balancing the event, so only one `users` and one `payments` service will receive the event. 
 You can also send broadcast events with the `broker.broadcast('user.created`) command. In this way every service instances on every nodes will receive the event.
-The `broker.broadcastLocal('user.created')` command only send events to the local services.
+The `broker.broadcastLocal('user.created')` command send events only to the local services.
 
 ## Renamed & new internal events
-Every internal event names start with '$'. This event is not transferred to remote nodes.
+Every internal event names start with '$'. These events are not transferred to remote nodes.
 
-**Renamed event:**
-- `node.connected` -> `$node.connected`.
+**Renamed events:**
+- `node.connected` -> `$node.connected`
 - `node.updated` -> `$node.updated`
 - `node.disconnected` -> `$node.disconnected`
 - `services.changed` -> `$services.changed`. It is called if local or remote service list changed.
@@ -29,7 +29,7 @@ Every internal event names start with '$'. This event is not transferred to remo
 **New events:**
 - global circuit breaker events for metrics: `metrics.circuit-breaker.closed`, `metrics.circuit-breaker.opened`, `metrics.circuit-breaker.half-opened`
 
-## Built-in load balancer is switchable.
+## Switchable built-in load balancer
 The built-in Moleculer load balancer is switchable. You can turn off it, if you use transporter what has internal balancer (like AMQP).
 
 ```js
@@ -43,40 +43,40 @@ const broker = new ServiceBroker({
 > Please note! If built-in balancer is disabled, every calls & emits (includes locals too) are transferred via transporter.
 
 ## Removed broker methods
-Some internal broker methods is removed or renamed.
+Some internal broker methods are removed or renamed.
 - `broker.bus` is removed. Use `events` in service schema instead.
 - `broker.on` is removed. Use `events` in service schema instead.
 - `broker.once` is removed. Use `events` in service schema instead.
 - `broker.off` is removed. Use `events` in service schema instead.
 - `broker.getService` is renamed to `broker.getLocalService`
 - `broker.hasService` is removed.
 - `broker.hasAction` is removed.
+- `broker.getAction` is deprecated.
 - `broker.isActionAvailable` is removed.
 
 
 ## Changed local service responses
-- changed returned structure of `$node.list`, `$node.services`, `$node.actions`, `$node.health`
-- new internal action `$node.events`
-
-# New
+Internal action (`$node.list`, `$node.services`, `$node.actions`, `$node.health`) responses are changed. New internal action (`$node.events`) to list event subscriptiion is added.
 
 ## Broker option changes
 - `heartbeatInterval` default value is changed from `10` to `5`.
 - `heartbeatTimeout` default value is changed from `30` to `15`.
 - `circuitBreaker.maxFailures` default value is changed from `5` to `3`.
-- `logFormatter` accepts string. The `simple` is a new formatter to show only log level & log messages.
+- `logFormatter` accepts string. The `simple` value is a new formatter to show only log level & log messages.
+
+# New
 
 ## Ping command
 Implemented a new PING & PONG feature. You can ping other nodes to measure the network latency and system time differences.
 
 ```js
 broker.createService({
-	name: "test",
-	events: {
-		"$node.pong"({ nodeID, elapsedTime, timeDiff }) {
-			this.logger.info(`Pong received from '${nodeID}' - Time: ${elapsedTime}ms, System time difference: ${timeDiff}ms`);
-		}
-	}
+    name: "test",
+    events: {
+        "$node.pong"({ nodeID, elapsedTime, timeDiff }) {
+            this.logger.info(`Pong received from '${nodeID}' - Time: ${elapsedTime}ms, System time difference: ${timeDiff}ms`);
+        }
+    }
 });
 
 broker.start().then(() => broker.transit.sendPing(/*nodeID*/));
@@ -101,16 +101,16 @@ let svc = broker.createService({
 
 Signature: 
 ```js
-this.waitForServices(serviceNames: String|Array<String>, timeout: Number/*milliseconds*/, interval: Number/*milliseconds*/)
+this.waitForServices(serviceNames: String|Array<String>, timeout: Number/*milliseconds*/, interval: Number/*milliseconds*/): Promise
 ```
 
 ## New error types
 We added some new Moleculer error classes.
-- `MoleculerRetryableError` - Common Retryable error
-- `MoleculerServerError` - Common server error
-- `MoleculerClientError` - Common client error
-- `ServiceNotAvailable` - Service is registered but isn't available (no live nodes or CB disabled them)
-- `ProtocolVersionMismatchError` - Invalid protocol version (if you connect with an older client (<= v0.10.0))
+- `MoleculerRetryableError` - Common Retryable error. Caller retries the request if `retryCount > 0`.
+- `MoleculerServerError` - Common server error (5xx).
+- `MoleculerClientError` - Common client/request error (4xx).
+- `ServiceNotAvailable` - Raises if the service is registered but isn't available (no live nodes or CB disabled them).
+- `ProtocolVersionMismatchError` - Raises if connect a node with an older client (<= v0.10.0)).
 
 # Other changes
 - The cachers don't listen "cache.clean" event.