doc: enhance words in README (#2734)

Co-authored-by: imbajin <jin@apache.org>

Author: bobbywarner

README.md

@@ -2,7 +2,7 @@
     <img width="720" alt="hugegraph-logo" src="https://github.com/apache/hugegraph/assets/38098239/e02ffaed-4562-486b-ba8f-e68d02bb0ea6" style="zoom:100%;" />
 </h1>
 
-<h3 align="center">A graph database that supports more than 10 billion data, high performance and scalability</h3>
+<h3 align="center">A graph database that supports more than 10 billion vertices & edges, high performance and scalability</h3>
 
 <div align="center">
 
@@ -15,15 +15,15 @@
 
 ## What is Apache HugeGraph?
 
-[HugeGraph](https://hugegraph.apache.org/) is a fast-speed and highly-scalable [graph database](https://en.wikipedia.org/wiki/Graph_database). 
-Billions of vertices and edges can be easily stored into and queried from HugeGraph due to its excellent OLTP ability. 
-As compliance to [Apache TinkerPop 3](https://tinkerpop.apache.org/) framework, various complicated graph queries can be 
-achieved through [Gremlin](https://tinkerpop.apache.org/gremlin.html)(a powerful graph traversal language).
+[HugeGraph](https://hugegraph.apache.org/) is a fast and highly-scalable [graph database](https://en.wikipedia.org/wiki/Graph_database). 
+Billions of vertices and edges can be easily stored into and queried from HugeGraph due to its excellent OLTP capabilities. 
+HugeGraph is compliant with the [Apache TinkerPop 3](https://tinkerpop.apache.org/) framework allowing complicated graph queries to be 
+achieved through the powerful [Gremlin](https://tinkerpop.apache.org/gremlin.html) graph traversal language.
 
 
 ## Features
 
-- Compliance to [Apache TinkerPop 3](https://tinkerpop.apache.org/), support [Gremlin](https://tinkerpop.apache.org/gremlin.html) & [Cypher](https://en.wikipedia.org/wiki/Cypher) language
+- Compliant to [Apache TinkerPop 3](https://tinkerpop.apache.org/), supports [Gremlin](https://tinkerpop.apache.org/gremlin.html) & [Cypher](https://en.wikipedia.org/wiki/Cypher) language
 - Schema Metadata Management, including VertexLabel, EdgeLabel, PropertyKey and IndexLabel
 - Multi-type Indexes, supporting exact query, range query and complex conditions combination query
 - Plug-in Backend Store Driver Framework, support `RocksDB`/`HStore`, `HBase`, `Cassandra/ScyllaDB`, and `MySQL/Postgre` now and easy to add another backend store driver if needed
@@ -32,27 +32,34 @@ achieved through [Gremlin](https://tinkerpop.apache.org/gremlin.html)(a powerful
 
 ## Quick Start
 
-### 1. Docker Way (Convenient for Test)
+### 1. Docker (For Test)
 
-We can use `docker run -itd --name=graph -p 8080:8080 hugegraph/hugegraph:1.3.0` to quickly start an inner 
-HugeGraph server with `RocksDB` (in backgrounds) for **test/dev**.
-You can visit [doc page](https://hugegraph.apache.org/docs/quickstart/hugegraph-server/#3-deploy) or
+Use Docker to quickly start a HugeGraph server with `RocksDB` (in the background) for **testing or development**:
+
+```
+# (Optional) 
+# 1. add "-e PASSWORD=xxx" to enable the auth system
+# 2. add "-e PRELOAD="true" to auto-load a sample graph
+docker run -itd --name=graph -p 8080:8080 hugegraph/hugegraph:1.5.0
+```
+
+Please visit [doc page](https://hugegraph.apache.org/docs/quickstart/hugegraph-server/#3-deploy) or
 the [README](hugegraph-server/hugegraph-dist/docker/README.md) for more details. ([Docker Compose](./hugegraph-server/hugegraph-dist/docker/example))
 
 > Note:
->  
-> 1. The docker image of hugegraph is a convenience release, but not **official distribution** artifacts. You can find more details from [ASF Release Distribution Policy](https://infra.apache.org/release-distribution.html#dockerhub).
-> 
-> 2. Recommend to use `release tag` (like `1.3.0`/`1.5.0`) for the stable version. Use `latest` tag to experience the newest functions in development.
+> 1. The Docker image of HugeGraph is a convenience release, but not **official distribution** artifacts. You can find more details from [ASF Release Distribution Policy](https://infra.apache.org/release-distribution.html#dockerhub).
+> 2. Recommend to use `release tag` (like `1.5.0`/`1.x.0`) for the stable version. Use `latest` tag to experience the newest functions in development.
 
-### 2. Download Way
+### 2. Download
 
 Visit [Download Page](https://hugegraph.apache.org/docs/download/download/) and refer the [doc](https://hugegraph.apache.org/docs/quickstart/hugegraph-server/#32-download-the-binary-tar-tarball) 
 to download the latest release package and start the server.
 
-### 3. Source Building Way
+**Note:** if you want to use it in the production environment or expose it to the public network, must enable the [AuthSystem](https://hugegraph.apache.org/docs/config/config-authentication/) to ensure safe. 
+
+### 3. Build From Source
 
-Visit [Source Building Page](https://hugegraph.apache.org/docs/quickstart/hugegraph-server/#33-source-code-compilation) and follow the 
+Visit [Build From Source Page](https://hugegraph.apache.org/docs/quickstart/hugegraph-server/#33-source-code-compilation) and follow the 
 steps to build the source code and start the server.
 
 The project [doc page](https://hugegraph.apache.org/docs/) contains more information on HugeGraph