[pulsar] branch master updated: update site2/docs/concepts-overview.md file (#4026)

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The following commit(s) were added to refs/heads/master by this push:
     new 5a008bd  update site2/docs/concepts-overview.md file (#4026)
5a008bd is described below

commit 5a008bdd4443db9aef0e8bd346771231541863b5
Author: Jennifer Huang <47...@users.noreply.github.com>
AuthorDate: Fri Apr 12 01:16:00 2019 +0800

    update site2/docs/concepts-overview.md file (#4026)
---
 site2/docs/concepts-overview.md | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/site2/docs/concepts-overview.md b/site2/docs/concepts-overview.md
index 9e863ef..22aa35c 100644
--- a/site2/docs/concepts-overview.md
+++ b/site2/docs/concepts-overview.md
@@ -4,18 +4,18 @@ title: Pulsar Overview
 sidebar_label: Overview
 ---
 
-Pulsar is a multi-tenant, high-performance solution for server-to-server messaging originally developed by [Yahoo](http://yahoo.github.io/) and now under the stewardship of the [Apache Software Foundation](https://www.apache.org/).
+Pulsar is a multi-tenant, high-performance solution for server-to-server messaging. Pulsar was originally developed by [Yahoo](http://yahoo.github.io/), it is under the stewardship of the [Apache Software Foundation](https://www.apache.org/).
 
-Pulsar's key features include:
+Key features of Pulsar are listed below:
 
-* Native support for multiple clusters in a Pulsar instance, with seamless [geo-replication](administration-geo.md) of messages across clusters
-* Very low publish and end-to-end latency
-* Seamless scalability out to over a million topics
-* A simple [client API](concepts-clients.md) with bindings for [Java](client-libraries-java.md), [Go](client-libraries-go.md), [Python](client-libraries-python.md) and [C++](client-libraries-cpp.md)
-* Multiple [subscription modes](concepts-messaging.md#subscription-modes) for topics ([exclusive](concepts-messaging.md#exclusive), [shared](concepts-messaging.md#shared), and [failover](concepts-messaging.md#failover))
-* Guaranteed message delivery with [persistent message storage](concepts-architecture-overview.md#persistent-storage) provided by [Apache BookKeeper](http://bookkeeper.apache.org/)
-* A serverless lightweight computing framework [Pulsar Functions](functions-overview.md) offers stream native data processing.
-* A serverless connector framework [Pulsar IO](io-overview.md) built on-top-of Pulsar Functions to make moving data in and out Apache Pulsar easier.
+* Native support for multiple clusters in a Pulsar instance, with seamless [geo-replication](administration-geo.md) of messages across clusters.
+* Very low publish and end-to-end latency.
+* Seamless scalability to over a million topics.
+* A simple [client API](concepts-clients.md) with bindings for [Java](client-libraries-java.md), [Go](client-libraries-go.md), [Python](client-libraries-python.md) and [C++](client-libraries-cpp.md).
+* Multiple [subscription modes](concepts-messaging.md#subscription-modes) ([exclusive](concepts-messaging.md#exclusive), [shared](concepts-messaging.md#shared), and [failover](concepts-messaging.md#failover)) for topics.
+* Guaranteed message delivery with [persistent message storage](concepts-architecture-overview.md#persistent-storage) provided by [Apache BookKeeper](http://bookkeeper.apache.org/).
+* A serverless light-weight computing framework [Pulsar Functions](functions-overview.md) offers the capability for stream-native data processing.
+* A serverless connector framework [Pulsar IO](io-overview.md), which is built on Pulsar Functions, makes it easier to move data in and out Apache Pulsar.
 * [Tiered Storage](concepts-tiered-storage.md) offloads data from hot/warm storage to cold/longterm storage (such as S3 and GCS) when the data is aging out.
 
 ## Contents