Update Astra link in README.md (langflow-ai#3314)

* Update link in README.md

* Update README.md

* Update getting-started-installation.md

* Update README.KR.md

* Update README.ja.md

README.KR.md

@@ -105,7 +105,7 @@ results = run_flow_from_json("path/to/flow.json", input_value="Hello, World!")
 
 ## DataStax Langflow
 
-DataStax Langflow는 [AstraDB](https://www.datastax.com/products/datastax-astra) 와 통합된 Langflow의 호스팅된 버전입니다. 별도의 설치나 설정이 필요하지 않고 몇 분 안에 실행됩니다. [무료로 가입하기](https://langflow.datastax.com).
+DataStax Langflow는 [AstraDB](https://www.datastax.com/products/datastax-astra) 와 통합된 Langflow의 호스팅된 버전입니다. 별도의 설치나 설정이 필요하지 않고 몇 분 안에 실행됩니다. [무료로 가입하기](https://astra.datastax.com/signup?type=langflow).
 
 ## Hugging Face Spaces에 Langflow 배포하기
 

README.ja.md

@@ -103,7 +103,7 @@ results = run_flow_from_json("path/to/flow.json", input_value="Hello, World!")
 
 ## DataStax Langflow
 
-DataStax Langflowは、[AstraDB](https://www.datastax.com/products/datastax-astra)と統合されたLangflowのホストバージョンです。インストールや設定なしで数分で稼働できます。[無料でサインアップ](https://langflow.datastax.com)してください。
+DataStax Langflowは、[AstraDB](https://www.datastax.com/products/datastax-astra)と統合されたLangflowのホストバージョンです。インストールや設定なしで数分で稼働できます。[無料でサインアップ](https://astra.datastax.com/signup?type=langflow)してください。
 
 ## Hugging Face SpacesにLangflowをデプロイ
 

README.md

@@ -8,7 +8,7 @@
 
 <p align="center" style="font-size: 12px;">
     <a href="https://docs.langflow.org" style="text-decoration: underline;">Docs</a> -
-    <a href="http://langflow.datastax.com" style="text-decoration: underline;">Free Cloud Service</a> -
+    <a href="https://astra.datastax.com/signup?type=langflow" style="text-decoration: underline;">Free Cloud Service</a> -
     <a href="https://docs.langflow.org/getting-started-installation" style="text-decoration: underline;">Self Managed</a>
 
 </p>
@@ -49,7 +49,7 @@ Star Langflow on GitHub to be instantly notified of new releases.
 pip install langflow
 ```
 
-- **Cloud:** DataStax Langflow is a hosted environment with zero setup. [Sign up for a free account.](http://langflow.datastax.com) 
+- **Cloud:** DataStax Langflow is a hosted environment with zero setup. [Sign up for a free account.](https://astra.datastax.com/signup?type=langflow) 
 - **Self-managed:** Run Langflow in your environment. [Install Langflow](https://docs.langflow.org/getting-started-installation) to run a local Langflow server, and then use the [Quickstart](https://docs.langflow.org/getting-started-quickstart) guide to create and execute a flow.
 - **Hugging Face:** [Clone the space using this link](https://huggingface.co/spaces/Langflow/Langflow?duplicate=true) to create a Langflow workspace.
 

docs/docs/Getting-Started/getting-started-installation.md

@@ -16,7 +16,7 @@ The easiest way to get started with Langflow is through the DataStax Cloud Servi
 
 
 
-**DataStax Langflow** is a hosted version of Langflow integrated with [AstraDB](https://www.datastax.com/products/datastax-astra). Be up and running in minutes with no installation or setup required. [Sign up for free](https://langflow.datastax.com/).
+**DataStax Langflow** is a hosted version of Langflow integrated with [Astra DB](https://www.datastax.com/products/datastax-astra). Be up and running in minutes with no installation or setup required. [Sign up for free](https://astra.datastax.com/signup?type=langflow).
 
 
 ![](./602374500.png)