fix doc build on readthedocs

Author: dbu

.readthedocs.yaml

@@ -1,12 +1,13 @@
 version: 2
 
+build:
+    os: ubuntu-lts-latest
+    tools:
+        python: "3.11"
+
 sphinx:
     configuration: conf.py
 
-# additional formats
-formats:
-    - pdf
-
 python:
-    version: "3.7"
-
+    install:
+        - requirements: requirements.txt

_exts/phpcr/__init__.py

@@ -0,0 +1,7 @@
+.wy-nav-side {
+    background: #a11a16;
+}
+
+.wy-side-nav-search {
+    background: #191818;
+}

_exts/phpcr/_test.cnd

@@ -18,7 +18,7 @@ An Example
 As an example we will define the node types required by a canonical blog
 application.
 
-.. code-block:: cnd
+.. code-block:: text
 
         <acmeBlog = "http://example.org/basiccms/ns/1.0">
 
@@ -59,7 +59,7 @@ The Canonical Example
 
 This has been copied directly from the `Jackrabbit Node Type Reference <http://jackrabbit.apache.org/node-type-notation.html>`_.
 
-.. code-block:: cnd
+.. code-block:: text
 
     /*  An example node type definition */