add restx logo

Author: ziirish

doc/_static/apple-180.png

@@ -115,12 +115,20 @@
 # further.  For a list of options available for each theme, see the
 # documentation.
 html_theme_options = {
+    'logo': 'logo-512.png',
+    'logo_name': True,
+    'touch_icon': 'apple-180.png',
     'github_user': 'python-restx',
     'github_repo': 'flask-restx',
     'github_banner': True,
     'show_related': True,
     'page_width': '1000px',
     'sidebar_width': '260px',
+    'favicons': {
+        64: 'favicon-64.png',
+        128: 'favicon-128.png',
+        196: 'favicon-196.png',
+    },
     'badges': [(
         # Gitter.im
         'https://badges.gitter.im/Join%20Chat.svg',
@@ -168,7 +176,7 @@
 # The name of an image file (within the static path) to use as favicon of the
 # docs.  This file should be a Windows icon file (.ico) being 16x16 or 32x32
 # pixels large.
-# html_favicon = '_static/favicon.ico'
+html_favicon = '_static/favicon.ico'
 
 # Add any paths that contain custom static files (such as style sheets) here,
 # relative to this directory. They are copied after the builtin static files,