Fix linalg link error.

Author: hunghaoti

docs/source/link.py

@@ -12,6 +12,6 @@
             'virtualenv':("https://docs.conda.io/projects/conda/en/latest/user-guide/tasks/manage-environments.html#%s",None),\
             'mkl-mac':("https://software.intel.com/content/www/us/en/develop/tools/math-kernel-library/choose-download/macos.html%s",None),\
             'wsl':("https://docs.microsoft.com/en-us/windows/wsl/install-win10%s",None),\
-            #'cytnx_namespace':("https://kaihsinwu.gitlab.io/cytnx_api/"+ _version + "/namespacecytnx.html%s",None),\
-            #'cytnx_linalg':("https://kaihsinwu.gitlab.io/cytnx_api/" + _version + "/namespacecytnx_1_1linalg.html%s",None)\
+            'cytnx_namespace':("../../api_build/html/versions/latest/namespacecytnx.html%s",None),\
+            'cytnx_linalg':("../../api_build/html/versions/latest/namespacecytnx_1_1linalg.html%s",None)\
             }