Fix pygments style

New theme of docs (Victoria+) respects pygments_style.
Since Kolla starts using Victoria reqs while being on Ussuri,
this patch ensures proper rendering both in Ussuri and Victoria.
Thanks @AJaeger for suggestion.

Change-Id: Iaf3c70b24685ab962f29007deec10b9d53c663bc

deploy-guide/source/conf.py

@@ -107,7 +107,7 @@ exclude_patterns = ["common_prerequisites.rst", "common_configure.rst"]
 # show_authors = False
 
 # The name of the Pygments (syntax highlighting) style to use.
-pygments_style = 'sphinx'
+pygments_style = 'native'
 
 # A list of ignored prefixes for module index sorting.
 # modindex_common_prefix = []

doc/source/conf.py

@@ -59,7 +59,7 @@ add_function_parentheses = True
 add_module_names = True
 
 # The name of the Pygments (syntax highlighting) style to use.
-pygments_style = 'sphinx'
+pygments_style = 'native'
 
 # -- Options for HTML output --------------------------------------------------
 

releasenotes/source/conf.py

@@ -85,7 +85,7 @@ exclude_patterns = []
 # show_authors = False
 
 # The name of the Pygments (syntax highlighting) style to use.
-pygments_style = 'sphinx'
+pygments_style = 'native'
 
 # A list of ignored prefixes for module index sorting.
 # modindex_common_prefix = []