README.md in keen-0.7.2 vs README.md in keen-0.7.3

@@ -131,10 +131,30 @@
 
 Detailed information on available parameters for each API resource can be found on the [API Technical Reference](https://keen.io/docs/api/reference/).
 
 ### Other code examples
 
+#### Batch publishing
+
+The keen-gem supports publishing events in batches via the `publish_batch` method. Here's an example usage:
+
+```ruby
+Keen.publish_batch(
+  :signups => [
+    { :name => "Bob" },
+    { :name => "Mary" }
+  ],
+  :purchases => [
+    { :price => 10 },
+    { :price => 20 }
+  ]
+)
+```
+
+This call would publish 2 `signups` events and 2 `purchases` events - all in just one API call.
+Batch publishing is ideal for loading historical events into Keen IO.
+
 #### Authentication
 
 To configure keen-gem in code, do as follows:
 
 ```ruby
@@ -175,10 +195,14 @@
 
 To track email opens, simply add an image to your email template that points to this URL.
 
 ### Changelog
 
+##### 0.7.3
++ Add batch publishing support
++ Allow event collection names for querying methods to be symbols. Thanks to [cbartlett](https://github.com/cbartlett).
+
 ##### 0.7.2
 + Fix support for non-https API URL testing
 
 ##### 0.7.1
 + Allow configuration of the base API URL via the KEEN_API_URL environment variable. Useful for local testing and proxies.
@@ -221,7 +245,8 @@
 
 ### Community Contributors
 + [alexkwolfe](https://github.com/alexkwolfe)
 + [peteygao](https://github.com/peteygao)
 + [obieq](https://github.com/obieq)
- 
++ [cbartlett](https://github.com/cbartlett)
+
 Thanks everyone, you rock!