add generateREADME.py, update README

- renumber two first lectures

.scripts/generateREADME.py

@@ -0,0 +1,49 @@
+import os
+import re
+from pathlib import Path
+
+def get_first_title(md_path):
+    with open(md_path, 'r', encoding='utf-8') as file:
+        for line in file:
+            match = re.match(r'^#\s+(.*)', line.strip())
+            if match:
+                return match.group(1)
+    return "Untitled"
+
+def extract_leading_number(filename):
+    match = re.match(r'^(\d{1,2})[_\- ]', filename)
+    return match.group(1) if match else None
+
+def generate_markdown_table(directory):
+    entries = []
+    for filename in os.listdir(directory):
+        if filename.endswith('.md'):
+            number = extract_leading_number(filename)
+            if number is None:
+                continue  # Skip files without leading number
+            filepath = os.path.join(directory, filename)
+            title = get_first_title(filepath)
+            entries.append((int(number), number, title, filename))
+    
+    entries.sort(key=lambda x: x[0])
+
+    table = ["| # | Lecture | Slides |", "|:------|:-----|:------|"]
+    for _, number, title, filename in entries:
+        table.append(f"| {number} | [{title}]({filename}) | [Download slides]({Path(filename).stem}-slides.html) |")
+
+    return '\n'.join(table)
+
+def main():
+    directory = "./../"  # current directory, or change to any other path
+    output_file = directory + "README.md"
+    table_md = generate_markdown_table(directory)
+    
+    with open(output_file, 'a', encoding='utf-8') as f:
+        f.write("# Contents\n\n")
+        f.write(table_md)
+        f.write("\n")
+
+    print(f"Index written to {output_file}")
+
+if __name__ == "__main__":
+    main()

0-introduction-to-csharp-and-dotnet.md

@@ -3,7 +3,7 @@ marp: true
 paginate: true
 math: mathjax
 theme: buutti
-title: 1. Introduction to C# and .NET
+title: 0. Introduction to C# and .NET
 ---
 
 # Introduction to C# and .NET

1-introduction-to-visual-studio.md

@@ -3,7 +3,7 @@ marp: true
 paginate: true
 math: mathjax
 theme: buutti
-title: 1.5. Introduction to Visual Studio
+title: 1. Introduction to Visual Studio
 ---
 
 # Introduction to Visual Studio

README.md

@@ -1,18 +1,23 @@
-# Contents
+<!-- <a href="/education/csharp-basics/raw/branch/main/5-arrays-and-lists-slides.html" download >Download</a>
-
+[Download3b](5-arrays-and-lists-slides.html "juuh")## Contents -->
-Material completion denoted with 🌑🌘🌗🌖🌕 .
 
-|  # | Lecture                                                                | Materials | Exercises |
+# Contents
-|---:|------------------------------------------------------------------------|----------:|----------:|
-| 8 | [Inheritance and Abstract Classes](8-inheritance-and-abstract-classes.md)                           |        🌕 |        🌕 |
-| 9 | [Interfaces](9-interfaces.md)                           |        🌕 |        🌕 |
-| 10 | [Static Members, Methods, and Classes](10-static-members-methods-and-classes.md)                           |        🌕 |        🌕 |
-| 11 | [Delegates and Events](11-delegates-and-events.md)                           |        🌕 |        🌗 |
-| 12 | [Files and Streams](12-files-and-streams.md)                           |        🌕 |        🌕 |
-| 13 | [Generics, IEnumberable and LINQ](13-generics-ienumerable-and-linq.md) |        🌕 |        🌕 |
-| 14 | [Exceptions, Threads and Tasks](14-exceptions-threads-and-tasks.md)    |        🌕 |        🌕 |
-| 15 | [Design Patterns in C#](15-design-patterns-in-csharp.md)               |        🌗 |        🌑 |
 
-<a href="/education/csharp-basics/raw/branch/main/5-arrays-and-lists-slides.html" download >Download</a>
+| #  | Lecture                                                                         | Slides                                                               |
-[Download2b](/raw/branch/main/5-arrays-and-lists-slides.html "juuh")
+|:---|:--------------------------------------------------------------------------------|:---------------------------------------------------------------------|
-[Download3b](5-arrays-and-lists-slides.html "juuh")
+| 0  | [Introduction to C# and .NET](0-introduction-to-csharp-and-dotnet.md)           | [Download slides](0-introduction-to-csharp-and-dotnet-slides.html)   |
+| 1  | [Introduction to Visual Studio](1-introduction-to-visual-studio.md)             | [Download slides](1-introduction-to-visual-studio-slides.html)       |
+| 2  | [Variables and Types](2-variables-and-types.md)                                 | [Download slides](2-variables-and-types-slides.html)                 |
+| 3  | [Conditionals](3-conditionals.md)                                               | [Download slides](3-conditionals-slides.html)                        |
+| 4  | [Loops](4-loops.md)                                                             | [Download slides](4-loops-slides.html)                               |
+| 5  | [Arrays and Lists](5-arrays-and-lists.md)                                       | [Download slides](5-arrays-and-lists-slides.html)                    |
+| 6  | [Methods](6-methods.md)                                                         | [Download slides](6-methods-slides.html)                             |
+| 7  | [Classes And Objects](7-classes-and-objects.md)                                 | [Download slides](7-classes-and-objects-slides.html)                 |
+| 8  | [Inheritance & Abstract Classes](8-inheritance-and-abstract-classes.md)         | [Download slides](8-inheritance-and-abstract-classes-slides.html)    |
+| 9  | [Interfaces](9-interfaces.md)                                                   | [Download slides](9-interfaces-slides.html)                          |
+| 10 | [Static Members, Methods and Classes](10-static-members-methods-and-classes.md) | [Download slides](10-static-members-methods-and-classes-slides.html) |
+| 11 | [Delegates and events](11-delegates-and-events.md)                              | [Download slides](11-delegates-and-events-slides.html)               |
+| 12 | [Files and Streams](12-files-and-streams.md)                                    | [Download slides](12-files-and-streams-slides.html)                  |
+| 13 | [Generics, IEnumerable and LINQ](13-generics-ienumerable-and-linq.md)           | [Download slides](13-generics-ienumerable-and-linq-slides.html)      |
+| 14 | [Exceptions, Threads and Tasks](14-exceptions-threads-and-tasks.md)             | [Download slides](14-exceptions-threads-and-tasks-slides.html)       |
+| 15 | [Design Patterns in C#](15-design-patterns-in-csharp.md)                        | [Download slides](15-design-patterns-in-csharp-slides.html)          |