Add Python sample code

Author: hkato

.gitignore

@@ -16,3 +16,7 @@ site/
 node_modules
 package.json
 package-lock.json
+
+# this project
+sample_code.html
+

sample_code.py

@@ -0,0 +1,23 @@
+import os
+
+import markdown
+from markdown_mermaid_cli import MermaidExtension
+
+markdown_text = """
+# Sample Markdown with Mermaid Diagram
+
+## Mermaid Diagram
+
+```mermaid format=svg width=500 alt="sequenceDiagram" theme="forest" backgroundColor="#dcdcdc"
+sequenceDiagram
+    participant Alice
+    participant Bob
+    Bob->>Alice: Hi Alice
+    Alice->>Bob: Hi Bob
+```
+"""
+
+html_output = markdown.markdown(markdown_text, extensions=[MermaidExtension()])
+
+with open(os.path.splitext(__file__)[0] + '.html', 'w') as f:
+    f.write(html_output)