diff --git a/doc/source/_templates/layout.html b/doc/source/_templates/layout.html
index bda9d87eb43c..748f1978fbce 100644
--- a/doc/source/_templates/layout.html
+++ b/doc/source/_templates/layout.html
@@ -1,10 +1,10 @@
{%- extends "!layout.html" %}
{%- block nav_links %}
-
Home
-User Guide
-Forum
-GitHub
+Home
+User Guide
+Forum
+GitHub
{%- endblock %}
{% block ga %}
diff --git a/doc/source/_templates/sidebarlogo.html b/doc/source/_templates/sidebarlogo.html
index e3206e77ff3a..ad3a6a74a08a 100644
--- a/doc/source/_templates/sidebarlogo.html
+++ b/doc/source/_templates/sidebarlogo.html
@@ -1,5 +1,5 @@
-
+
diff --git a/doc/source/conf.py b/doc/source/conf.py
index c0aab7564eee..08a557a31f90 100644
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -89,6 +89,9 @@
# A list of ignored prefixes for module index sorting.
#modindex_common_prefix = []
+# Natural language of docs.
+language = 'en'
+
# -- Options for HTML output ---------------------------------------------------
diff --git a/doc/source/guzzle_sphinx_theme/guzzle_sphinx_theme/layout.html b/doc/source/guzzle_sphinx_theme/guzzle_sphinx_theme/layout.html
index 24deadd1812e..c7f4625ad91b 100644
--- a/doc/source/guzzle_sphinx_theme/guzzle_sphinx_theme/layout.html
+++ b/doc/source/guzzle_sphinx_theme/guzzle_sphinx_theme/layout.html
@@ -64,7 +64,8 @@
{%- if theme_github_user and theme_github_repo %}
+ allowtransparency="true" frameborder="0" scrolling="0" width="110px" height="20px" sandbox="allow-scripts"
+ title="GitHub button showing the number of project stars.">
{%- endif %}
diff --git a/doc/source/guzzle_sphinx_theme/guzzle_sphinx_theme/searchbox.html b/doc/source/guzzle_sphinx_theme/guzzle_sphinx_theme/searchbox.html
index 115b88e19062..ceec39a7fd54 100644
--- a/doc/source/guzzle_sphinx_theme/guzzle_sphinx_theme/searchbox.html
+++ b/doc/source/guzzle_sphinx_theme/guzzle_sphinx_theme/searchbox.html
@@ -2,7 +2,8 @@
{{ _('Quick search') }}