Improve whitespace consistency

Author: mfisher87

src/maintainer/knowledge_base.rst

@@ -1607,7 +1607,6 @@ to specify your package:
    dependencies:
      - conda-forge/label/matplotlib_rc::matplotlib=3.7.0rc1
 
-
 Alternately, you can use the channels section to enable the `matplotlib_rc` channel:
 
 .. code-block:: yaml
@@ -1617,7 +1616,6 @@ Alternately, you can use the channels section to enable the `matplotlib_rc` chan
    dependencies:
      - matplotlib=3.7.0.rc1
 
-
 Pre-release version sorting
 ---------------------------