feat: add build file

Author: xryuseix

.gitignore

@@ -0,0 +1 @@
+index.html

make_title.py

@@ -0,0 +1,21 @@
+import glob
+import os
+
+files = glob.glob("./pages/*.html")
+for file in files:
+    print(file)
+
+if os.path.exists("./index.html"):
+    os.remove("./index.html")
+
+html = "<h1>RiST 初心者向け Webページ公開編</h1>\n"
+html += "<ul>"
+for file in files:
+    user_name = file.split("/")[-1].split(".")[0]
+    path = file
+    html += f"<li><a href='{path}'>{user_name}</li>"
+
+html += "</ul>"
+
+with open('index.html', mode="w") as f:
+    f.write(html)