[readme] Update Fluss to Apache Fluss(Incubating) in readme (apache#1263)

Author: polyzos

README.md

@@ -3,7 +3,7 @@
       <source media="(prefers-color-scheme: dark)" srcset="website/static/img/logo/svg/white_color_logo.svg">
       <source media="(prefers-color-scheme: light)" srcset="website/static/img/logo/svg/colored_logo.svg">
       <!-- Fall back to version that works for dark and light mode -->
-      <img alt="Fluss logo" src="website/static/img/logo/svg/white_filled.svg">
+      <img alt="Apache Fluss logo" src="website/static/img/logo/svg/white_filled.svg">
     </picture>
 </p>
 
@@ -17,9 +17,9 @@
   <a href="https://join.slack.com/t/fluss-hq/shared_invite/zt-33wlna581-QAooAiCmnYboJS8D_JUcYw"><img src="https://img.shields.io/badge/slack-join_chat-brightgreen.svg?logo=slack" alt="Slack"></a>
 </p>
 
-## What is Fluss?
+## What is Apache Fluss (Incubating)?
 
-Fluss is a streaming storage built for real-time analytics which can serve as the real-time data layer for Lakehouse architectures.
+Apache Fluss (Incubating) is a streaming storage built for real-time analytics which can serve as the real-time data layer for Lakehouse architectures.
 
 It bridges the gap between **data streaming** and **data Lakehouse** by enabling low-latency, high-throughput data ingestion and processing while seamlessly integrating with popular compute engines like **Apache Flink**, while Apache Spark, and StarRocks are coming soon.
 
@@ -36,7 +36,7 @@ It bridges the gap between **data streaming** and **data Lakehouse** by enabling
 
 ## Building
 
-Prerequisites for building Fluss:
+Prerequisites for building Apache Fluss:
 
 - Unix-like environment (we use Linux, Mac OS X, Cygwin, WSL)
 - Git
@@ -49,14 +49,14 @@ cd fluss
 ./mvnw clean package -DskipTests
 ```
 
-Fluss is now installed in `build-target`. The build command uses Maven Wrapper (`mvnw`) which ensures the correct Maven version is used.
+Apache Fluss is now installed in `build-target`. The build command uses Maven Wrapper (`mvnw`) which ensures the correct Maven version is used.
 
 ## Contributing
 
-Fluss is open-source, and we’d love your help to keep it growing! Join the [discussions](https://github.com/alibaba/fluss/discussions),
+Apache Fluss (Incubating) is open-source, and we’d love your help to keep it growing! Join the [discussions](https://github.com/alibaba/fluss/discussions),
 open [issues](https://github.com/alibaba/fluss/issues) if you find a bug or request features, contribute code and documentation,
  or help us improve the project in any way. All contributions are welcome!
 
 ## License
 
-Fluss project is licensed under the [Apache License 2.0](https://github.com/alibaba/fluss/blob/main/LICENSE).
+Apache Fluss (Incubating) project is licensed under the [Apache License 2.0](https://github.com/alibaba/fluss/blob/main/LICENSE).