fix: update legacy dev docs to build on new site

source/developers/references/legacy_guide/architecture.rst

@@ -27,7 +27,7 @@ strategy will help manage the complexity of the edx-platform code base to make
 it as easy as possible for developers to approach and contribute to the
 project.
 
-.. image:: ../../shared/images/edx-architecture.png
+.. image:: ./images/edx-architecture.png
   :width: 700
   :alt: A diagram of the components and technologies that make up an edX site.
 

source/developers/references/legacy_guide/extending_platform/xblocks.rst

@@ -164,7 +164,7 @@ steps.
 Note the name ``your-block`` used in Studio must exactly match the key you used
 to add your block to your ``setup.py`` ``entry_points`` list. (If you are still
 discovering XBlocks and simply used the ``workbench-make-new.py`` script as
-described in the :ref:`xblocktutorial:Open edX XBlock Tutorial`, look in the
+described in the `xblocktutorial:Open edX XBlock Tutorial`, look in the
 ``setup.py`` file that was created.)
 
 *********************
@@ -179,4 +179,56 @@ the list of ``ADVANCED_COMPONENT_TYPES`` in
 
 .. _XBlock URL Dev:
 
-.. include:: ../../../shared/dev/Section_XBlock_URL.rst
+**************************************
+Rendering XBlocks with the XBlock URL
+**************************************
+
+The XBlock URL supports HTML rendering of an individual XBlock without the user
+interface of the LMS.
+
+To use the XBlock URL and return the HTML rendering of an individual XBlock,
+you use the following URL path for an XBlock on an edX site.
+
+``https://{host}/xblock/{usage_id}``
+
+========================
+Finding the ``usage_id``
+========================
+
+The ``usage_id`` is the unique identifier for the problem, video, text, or
+other course content component, or for sequential or vertical course container
+component. There are several ways to find the ``usage_id`` for an XBlock in the
+LMS, including viewing either the staff debug info or the page source. For more
+information, see
+`opencoursestaff:Finding the Usage ID for Course Content`.
+
+===================
+Example XBlock URLs
+===================
+
+For example, a video component in the "Creating Video for the edX Platform"
+course on the edx.org site has the following URL.
+
+``https://courses.edx.org/courses/course-v1:edX+VideoX+1T2016/courseware/ccc7c32c65d342618ac76409254ac238/1a52e689bcec4a9eb9b7da0bf16f682d/``
+
+This video component appears as follows in the LMS.
+
+.. image:: ../images/XBlock_URL_example_before.png
+    :alt: A video component presented in the context of the edX LMS, with
+        navigational options to reach all other course content.
+
+To construct the XBlock URL for the same video component, you obtain its
+``usage_id`` and then use the following URL format.
+
+``https://courses.edx.org/xblock/block-v1:edX+VideoX+1T2016+type@video+block@47faf3a03c4f4023b187528c25932e0a``
+
+When you use this URL, the video component appears in your browser as follows.
+
+.. image:: ../images/XBlock_URL_example_after.png
+    :alt: A video component presented without any options for accessing other
+        course content.
+
+For courses created prior to October 2014, the ``usage_id`` begins with
+``i4x://``, as in the following example.
+
+``https://courses.edx.org/xblock/i4x://edX/DemoX.1/problem/47bf6dbce8374b789e3ebdefd74db332``

source/developers/references/legacy_guide/front_matter/browsers.rst

@@ -1 +1,7 @@
-.. include:: ../../../shared/browsers.rst
+.. _Browsers:
+
+########################
+Open edX Browser Support
+########################
+
+TODO: This needs to be removed from all of the books that reference it and be updated for the Open edX community.