chore: add incubating notice

.asf.yaml

@@ -19,8 +19,8 @@
 
 github:
   description: >-
-    Java implementation of HoraeDB client.
-  homepage: https://apache.github.io/incubator-horaedb-docs # TODO: after website is ready, set to https://horaedb.apache.org/
+    Apache HoraeDB (Incubating) Java Client.
+  homepage: https://horaedb.apache.org/
   labels:
     - java
     - sql

DISCLAIMER

@@ -0,0 +1,10 @@
+Apache HoraeDB (incubating) is an effort undergoing incubation at the Apache
+Software Foundation (ASF), sponsored by the Apache Incubator PMC.
+
+Incubation is required of all newly accepted projects until a further review
+indicates that the infrastructure, communications, and decision making process
+have stabilized in a manner consistent with other successful ASF projects.
+
+While incubation status is not necessarily a reflection of the completeness
+or stability of the code, it does indicate that the project has yet to be
+fully endorsed by the ASF.

README.md

@@ -1,13 +1,12 @@
-# HoraeDB Java Client
+# Apache HoraeDB (Incubating) Java Client
 
 ![License](https://img.shields.io/badge/license-Apache--2.0-green.svg)
 
 [中文](README_CN.md)
 
 ## Introduction
 
-HoraeDB Client is a high-performance Java client for HoraeDB.
-HoraeDB is a high-performance, distributed, schema-less, cloud native time-series database that can handle both time-series and analytics workloads.
+Java client for [Apache HoraeDB (Incubating)](https://github.com/apache/incubator-horaedb).
 
 ## Features
 

README_CN.md

@@ -1,9 +1,9 @@
-# HoraeDB Java Client
+# Apache HoraeDB (Incubating) Java Client
 
 ![License](https://img.shields.io/badge/license-Apache--2.0-green.svg)
 
 ## 介绍
-HoraeDBClient 是 HoraeDB 的高性能 Java 版客户端。HoraeDB 是定位为高性能的、分布式的、Schema-less 的云原生时序数据库。它可以同时支持时间序列和数据分析型的工作负载。
+HoraeDBClient 是 [Apache HoraeDB (Incubating)](https://github.com/apache/incubator-horaedb) 的高性能 Java 版客户端。
 
 ## 功能特性
 - 通信层基于 SPI 可扩展，默认提供 gRPC 的实现