Update gihub link and user guide link.

Author: hunghaoti

docs/api_docs/home_source/conf.py

@@ -100,8 +100,8 @@
     # True indicates an external link.
     # False indicates path of pages in the document.
     'navbar_links' : [
-         ("User Guide", "https://kaihsinwu.gitlab.io/Cytnx_doc", True),
-         ("Github", "https://github.com/kaihsin/Cytnx", True)
+         ("User Guide", "https://cytnx-dev.github.io/Cytnx_doc", True),
+         ("Github", "https://github.com/Cytnx-dev/Cytnx", True)
     ],
 
     # Total width(%) of the document and the sidebar.

docs/source/index.rst

@@ -28,7 +28,7 @@ Cytnx user guide and examples
 
 .. toctree::
     API Documentation <apidoc_redirect>
-    Github <https://github.com/kaihsin/Cytnx>
+    Github <https://github.com/Cytnx-dev/Cytnx>
     5-mins Blitz intro slide <https://drive.google.com/file/d/1vuc_fTbwkL5t52glzvJ0nNRLPZxj5en6/view?usp=sharing>
 
 .. toctree::