Fix badges (25→30), SECURITY.md version table, CI expected_count

- README badges: 25→30 lessons, add bilingual + v2.0.0 badge
- SECURITY.md: update supported versions table for v2.0.x
- CI: expected_count 25→30

Author: xingd5478-ctrl

.github/workflows/ci.yml

@@ -52,7 +52,7 @@ jobs:
       - name: Check project structure
         run: |
           echo "=== Checking project structure ==="
-          expected_count=25
+          expected_count=30
           actual_count=$(ls t[0-9]*.m 2>/dev/null | wc -l)
           echo "  Tutorial scripts found: $actual_count (expected ≥ $expected_count)"
           echo "  .slx models: $(ls models/*.slx 2>/dev/null | wc -l)"

README.md

@@ -1,9 +1,10 @@
 <p align="center">
   <img src="https://img.shields.io/badge/MATLAB-R2020a+-0076A8?style=flat-square&logo=matlab" alt="MATLAB">
   <img src="https://img.shields.io/badge/Simulink-Control_Engineering-FF6600?style=flat-square" alt="Simulink">
-  <img src="https://img.shields.io/badge/Tutorials-25_lessons-blue?style=flat-square" alt="25 Tutorials">
+  <img src="https://img.shields.io/badge/Tutorials-30_lessons-blue?style=flat-square" alt="30 Tutorials">
   <img src="https://img.shields.io/badge/License-MIT-green?style=flat-square" alt="MIT">
-  <img src="https://img.shields.io/badge/Language-中文-red?style=flat-square" alt="Chinese">
+  <img src="https://img.shields.io/badge/Language-中文%7CEnglish-red?style=flat-square" alt="Bilingual">
+  <img src="https://img.shields.io/badge/Release-v2.0.0-purple?style=flat-square" alt="v2.0.0">
   <img src="https://img.shields.io/github/stars/xingd5478-ctrl/simulink-control-tutorial?style=flat-square" alt="Stars">
   <img src="https://img.shields.io/github/last-commit/xingd5478-ctrl/simulink-control-tutorial?style=flat-square" alt="Last Commit">
   <img src="https://img.shields.io/github/actions/workflow/status/xingd5478-ctrl/simulink-control-tutorial/ci.yml?style=flat-square&label=CI" alt="CI">

README_EN.md

@@ -1,7 +1,7 @@
 <p align="center">
   <img src="https://img.shields.io/badge/MATLAB-R2020a+-0076A8?style=flat-square&logo=matlab" alt="MATLAB">
   <img src="https://img.shields.io/badge/Simulink-Control_Engineering-FF6600?style=flat-square" alt="Simulink">
-  <img src="https://img.shields.io/badge/Tutorials-25_lessons-blue?style=flat-square" alt="25 Tutorials">
+  <img src="https://img.shields.io/badge/Tutorials-30_lessons-blue?style=flat-square" alt="30 Tutorials">
   <img src="https://img.shields.io/badge/License-MIT-green?style=flat-square" alt="MIT">
   <img src="https://img.shields.io/badge/Language-English%7C%E4%B8%AD%E6%96%87-blue?style=flat-square" alt="Bilingual">
   <img src="https://img.shields.io/github/stars/xingd5478-ctrl/simulink-control-tutorial?style=flat-square" alt="Stars">

SECURITY.md

@@ -4,8 +4,8 @@
 
 | Version | Supported          |
 |---------|--------------------|
-| 1.1.x   | :white_check_mark: |
-| 1.0.x   | :white_check_mark: |
+| 2.0.x   | :white_check_mark: |
+| 1.x.x   | :white_check_mark: |
 | < 1.0   | :x:                |
 
 ## Reporting a Vulnerability