Improve wording of product overview

Author: Bryan

README.md

@@ -6,9 +6,9 @@
 
 [Barchart](https://www.barchart.com) offers an exhaustive array of market data for multiple asset classes from exchanges around the world. **This SDK enables your applications to consume real-time market data**, as follows:
 
-* A WebSocket connection is established between your application and Barchart's quote servers, then
-* Your application sends subscription requests for individual symbol(s), then
-* Your application receives a stream of market data for subscribed symbol(s).
+* A **WebSocket** connection is established between your application and Barchart's quote servers, then
+* Your application requests market data for one or more symbols, then
+* Your application receives a market data stream for subscribed symbols.
 
 ### Documentation
 

docs/content/product_overview.md

@@ -3,8 +3,8 @@
 **This SDK enables your JavaScript applications to consume real-time market data**, as follows:
 
 * A **WebSocket** connection is established between your application and Barchart's quote servers, then
-* Your application sends subscription requests for individual symbol(s), then
-* Your application receives a stream of market data for subscribed symbol(s).
+* Your application requests market data for one or more symbols, then
+* Your application receives a market data stream for subscribed symbols.
 
 ## Market Data Catalog