chore: sync conf.py extensions with docs dependencies listed in requirements folder

docs/source/conf.py

@@ -52,7 +52,7 @@
     "sphinx.ext.intersphinx",
     "sphinx_rtd_theme",
     "sphinx_copybutton",
-    "m2r2",
+    "m2r",
 ]
 
 # Add any paths that contain templates here, relative to this directory.
@@ -302,7 +302,7 @@
         "diffpy.srfit Documentation",
         ab_authors,
         "diffpy.srfit",
-        "One line description of project.",
+        "Configurable code for solving atomic structures.",
         "Miscellaneous",
     ),
 ]

news/update-docs-dependency.rst

@@ -0,0 +1,23 @@
+**Added:**
+
+* No news added: Trivial change to conf.py
+
+**Changed:**
+
+* <news item>
+
+**Deprecated:**
+
+* <news item>
+
+**Removed:**
+
+* <news item>
+
+**Fixed:**
+
+* <news item>
+
+**Security:**
+
+* <news item>