Revert to sphinx

Author: josh-silvas

.readthedocs.yml

@@ -1,8 +1,9 @@
 ---
 version: 2
 
-mkdocs:
-  configuration: "mkdocs.yml"
+sphinx:
+  builder: "html"
+  configuration: "docs/source/conf.py"
   fail_on_warning: false
 
 python:

README.md

@@ -1,5 +1,5 @@
 # DiffSync
-<!--intro start--> 
+
 DiffSync is a utility library that can be used to compare and synchronize different datasets.
 
 For example, it can be used to compare a list of devices from 2 inventory systems and, if required, synchronize them in either direction.
@@ -23,9 +23,9 @@ A.sync_to(B)
 ```
 
 You may wish to peruse the [`diffsync` GitHub topic](https://github.com/topics/diffsync) for examples of projects using this library.
-<!--intro end-->
+
 # Getting started
-<!--getting started start-->
+
 To be able to properly compare different datasets, DiffSync relies on a shared data model that both systems must use.
 Specifically, each system or dataset must provide a `DiffSync` "adapter" subclass, which in turn represents its dataset as instances of one or more `DiffSyncModel` data model classes.
 
@@ -151,4 +151,3 @@ class BackendA(DiffSync):
         # The default DiffSync.sync_complete() method does nothing, but it's always a good habit to call super():
         super().sync_complete(source, diff, flags, logger)
 ```
-<!--getting started end-->

diffsync/__init__.py

@@ -37,7 +37,7 @@ class DiffSyncModel(BaseModel):
     This class has several underscore-prefixed class variables that subclasses should set as desired; see below.
 
     NOTE: The groupings _identifiers, _attributes, and _children are mutually exclusive; any given field name can
-    be included in **at most** one of these three tuples.
+          be included in **at most** one of these three tuples.
     """
 
     _modelname: ClassVar[str] = "diffsyncmodel"