Dos: update them based on addons updates

docs/user/build-default-versions.rst

@@ -10,10 +10,9 @@
 Default versions of dependencies
 ================================
 
-Read the Docs supports two tools to build your documentation:
+Read the Docs supports any documentation tool to build your documentation.
+However, we provide pre-defined builders for
 `Sphinx <https://www.sphinx-doc.org/>`__ and `MkDocs <https://www.mkdocs.org/>`__.
-In order to provide :doc:`several features </reference/features>`,
-Read the Docs injects or modifies some content while building your docs.
 
 In the past we used to install several dependencies to a specific version and update them after some time,
 but doing so would break some builds and make it more difficult for new projects to use new versions.
@@ -76,12 +75,3 @@ pillow:
 recommonmark:
   Latest version by default installed via ``conda``.
   Projects created after August 7, 2023 won't install this dependency by default.
-
-Internal dependencies
----------------------
-
-Internal dependencies are needed to integrate your docs with Read the Docs.
-We guarantee that these dependencies will work with all current supported versions of our tools,
-you don't need to specify them in your requirements.
-
-- `readthedocs-sphinx-ext <https://github.com/readthedocs/readthedocs-sphinx-ext>`__

docs/user/guides/content/index.rst

@@ -51,15 +51,10 @@ How-to guides: content, themes and SEO
     There are a number of use cases for embedding content,
     so we've built our integration in a way that enables users to build on top of it.
 
-⏩️ :doc:`Removing "Edit on ..." buttons from documentation </guides/remove-edit-buttons>`
-    When building your documentation,
-    Read the Docs automatically adds buttons at the top of your documentation and in the versions menu that point readers to your repository to make changes.
-    Here's how to remove it.
-
 ⏩️ :doc:`Adding "Edit Source" links on your Sphinx theme </guides/edit-source-links-sphinx>`
     Using your own theme?
-    Read the Docs injects some extra variables in the Sphinx ``html_context``,
-    some of which you can use to add an "edit source" link at the top of all pages.
+    Add some extra variables in the Sphinx ``html_context``,
+    to add an "edit source" link at the top of all pages.
 
 .. toctree::
    :maxdepth: 1

docs/user/guides/edit-source-links-sphinx.rst

@@ -1,9 +1,8 @@
 Adding "Edit Source" links on your Sphinx theme
 ===============================================
 
-Read the Docs injects some extra variables in the Sphinx ``html_context``
-that are used by `our Sphinx theme`_ to display "edit source" links at the top of all pages.
-You can use these variables in your own Sphinx theme as well.
+You can use define some Sphinx variables in the ``html_context`` to tell Read the Docs Sphinx theme
+to display "Edit Source" links on each page.
 
 More information can be found on `Sphinx documentation`_.