update document title for SEO (#1920)

docs/en_US/conf.py

@@ -12,16 +12,16 @@
 # add these directories to sys.path here. If the directory is relative to the
 # documentation root, use os.path.abspath to make it absolute, like shown here.
 #
+from recommonmark.transform import AutoStructify
+from recommonmark.parser import CommonMarkParser
 import os
 import sys
 sys.path.insert(0, os.path.abspath('../../src/sdk/pynni'))
 
-from recommonmark.parser import CommonMarkParser
-from recommonmark.transform import AutoStructify
 
 # -- Project information ---------------------------------------------------
 
-project = 'Neural Network Intelligence'
+project = 'NNI'
 copyright = '2020, Microsoft'
 author = 'Microsoft'
 
@@ -109,6 +109,8 @@ html_static_path = ['../static']
 # html_sidebars = {}
 
 html_logo = '../img/nni_logo_dark.png'
+html_title = 'An open source AutoML toolkit for neural architecture search, model compression and hyper-parameter tuning (%s %s)' % \
+    (project, release)
 
 # -- Options for HTMLHelp output ---------------------------------------------
 

docs/en_US/index.rst

-#########################################
-Neural Network Intelligence Documentation
-#########################################
+###########################
+Neural Network Intelligence
+###########################
 
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