removed pandoc from the python requirements

requirements.txt

@@ -1,6 +1,16 @@
-flask
+click==8.0.3
-markdown
+Flask==2.0.2
-urllib3
+importlib-metadata==4.10.1
-pandoc
+itsdangerous==2.0.1
-pypandoc
+Jinja2==3.0.3
-jinja
+Markdown==3.3.6
+MarkupSafe==2.0.1
+pkg-resources==0.0.0
+plumbum==1.7.2
+ply==3.11
+pypandoc==1.7.2
+typing-extensions==4.0.1
+urllib3==1.26.8
+Werkzeug==2.0.2
+zipp==3.7.0
+