updating .md files with npm ci

Author: cx-atish-jadhav

CLAUDE.md

@@ -188,7 +188,7 @@ CxWrapper (Main Entry Point)
 
 2. **Install dependencies**
    ```bash
-   npm install
+   npm ci
    ```
 
 3. **Verify installation**

README.md

@@ -53,8 +53,8 @@ To be able to build the code you should have:
 ### Setting Up
 
 In your terminal, run:
-```
-- npm install
+```bash
+npm ci
 ```
 
 To run integrations tests, you need to set up environment variables: