Fix url of images in README

README.md

@@ -14,7 +14,7 @@ Nefertiti is a theme for [Sphinx](https://www.sphinx-doc.org/en/master/) that fe
 
 ## Index filtering
 
-<img align="left" width="329" height="694" src="docs/build/html/_static/img/index-filtering.gif">
+<img align="left" width="329" height="694" src="docs/source/_static/img/index-filtering.gif">
 
 By default the **index** shows the content folded. Opening or closing items is remembered while browsing the documentation.
 
@@ -26,15 +26,15 @@ After clearing the input field the index displays itself again with the folded a
 
 ##  The TOC on the right side
 
-<img align="right" width="393" height="327" src="docs/build/html/_static/img/toc.png">
+<img align="right" width="393" height="327" src="docs/source/_static/img/toc.png">
 
 The Table of Contents, displayed on the right side of the page, spans itself to the right border of the browser to display long items, improving readability.
 
 ## Other features
 
 Nefertiti for Sphinx comes with the following color sets. Change between them using the attribute `display` of the `html_theme_options` setting.
 
-<img align="center" width="768" height="462" src="docs/build/html/_static/img/colorsets.png">
+<img align="center" width="768" height="462" src="docs/source/_static/img/colorsets.png">
 
 In order to be compliant with [EU's GDPR](https://gdpr.eu/), Nefertiti for Sphinx comes bundled with a group of fonts licensed for free distribution. Adding more fonts is explained in the [User's Guide](https://sphinx-nefertiti.readthedocs.io/en/latest/users-guide/customization/fonts.html#adding-fonts):