Revert "Finish PE 2"

This reverts commit a8a68d4d83.

content/Prompt Engineering for Developer/do_contents.py

@@ -1,33 +0,0 @@
-import os 
-import codecs
-import json
-
-def add_toc(ipynb_file):
-    f = codecs.open(ipynb_file, 'r')
-    source = f.read()
-    y = json.loads(source)
-    toc = ["\n"]
-    for item in y["cells"]:
-        if item["cell_type"]=='markdown':
-            if len(item["source"]) == 0:
-                continue
-            # print(item["source"])
-
-            item_start = item['source'][0].strip("\n")
-            if item_start.startswith("#"):
-                l = len(item_start.split()[0])
-                if l<=3 and l>1: 
-                    name = " ".join(item_start.split(" ")[1:])
-                    tag = "-".join(item_start.split(" ")[1:])
-                    tab = "    "*(l-2)
-                    toc.append(f' {tab}- [{name}](#{tag})\n')     
-
-    y["cells"][0]['source']= y["cells"][0]['source'][0:1]
-    y["cells"][0]['source'].extend(toc)
-    f = codecs.open(ipynb_file, 'w')
-    f.write(json.dumps(y))
-    f.close()
-
-for file in os.listdir("."):
-    if file.endswith("ipynb") and file[0].isdigit():
-        add_toc(file)