update syle

Author: todortodorovic

.CONTRIBUTING/tutorials/.CONTRIBUTING.md

@@ -49,14 +49,15 @@
 
  **Important:** Enable "Allow edits by maintainers" on your PR
 
-**Recommendation:** Even with team assistance, reviewing the [STYLE_GUIDE.md](STYLE_GUIDE.md) helps you create better tutorials from the start.
+**Required:** You must read the [STYLE_GUIDE.md](STYLE_GUIDE.md) to understand all requirements. The difference is that with the team-assisted path, they will have the bandwidth to handle the review process.
 
 ### Self-Managed Path
 **Handle all formatting and style requirements yourself**
 
  **Full control** over your tutorial format and style
  **More review rounds** - you must fix all style issues
  **Required reading:** [STYLE_GUIDE.md](STYLE_GUIDE.md)
+ **For expedited review:** Also read the PaperMoon Documentation Style Guide
 
 ---
 

.CONTRIBUTING/tutorials/STYLE_GUIDE.md

@@ -202,12 +202,20 @@ Store reusable code in the `.snippets` directory:
 
 ### Including Code Snippets
 
-```markdown
+
 ```bash
 --8<-- 'code/tutorials/polkadot-sdk/parachains/setup.sh'
 ```
+
+
+You can also use line numbers and include specific lines:
+
+
+```bash linenums="1"
+--8<-- 'code/tutorials/polkadot-sdk/parachains/setup.sh:10:20'
 ```
 
+
 ### Code Block Guidelines
 
 - Always specify language for syntax highlighting

.CONTRIBUTING/tutorials/templates/xcm-interoperability-template.md

@@ -25,9 +25,19 @@ Before starting, ensure you have:
 - Basic understanding of XCM concepts
 - Access to testnet networks (if applicable)
 
-## Step 1: Network Setup and Configuration
+## Step 1: Chopsticks Environment Setup
 
-[Configure networks and prepare for cross-chain operations]
+First, we'll set up Chopsticks to simulate the network environment for XCM testing.
+
+### Install Chopsticks
+
+```bash
+npm install @acala-network/chopsticks@latest
+```
+
+### Configure Networks
+
+Create a chopsticks configuration file for your networks:
 
 ### Network Configuration
 ```javascript