docs: Minor fixes

Author: SilverRainZ

docs/dsl.rst

@@ -191,7 +191,7 @@ through the :attr:`~sphinxnotes.render.Registry.data` attribute of
 Adding Custom Types
 -------------------
 
-Use :meth:`~sphinxnotes.render.data.REGISTRY.add_type` of
+Use :meth:`~sphinxnotes.render.data.REGISTRY.add_type` method of
 :data:`sphinxnotes.render.REGISTRY` to add a new type:
 
 >>> from sphinxnotes.render import REGISTRY
@@ -211,7 +211,7 @@ Use :meth:`~sphinxnotes.render.data.REGISTRY.add_type` of
 Adding Custom Flags
 -------------------
 
-Use :meth:`~sphinxnotes.render.data.Registry.add_flag` of
+Use :meth:`~sphinxnotes.render.data.Registry.add_flag` method of
 :data:`sphinxnotes.render.REGISTRY` to add a new type:
 
 >>> from sphinxnotes.render import REGISTRY
@@ -225,7 +225,7 @@ True
 Adding Custom By-Options
 ------------------------
 
-Use :meth:`sphinxnotes.render.data.Registry.add_by_option` of
+Use :meth:`~sphinxnotes.render.data.Registry.add_by_option` method of
 :data:`sphinxnotes.render.REGISTRY` to add a new by-option:
 
 >>> from sphinxnotes.render import REGISTRY