DOC: Fixing more doc warnings (#24431)

Author: datapythonista

doc/source/tutorials.rst

@@ -33,7 +33,7 @@ repository <http://github.com/jvns/pandas-cookbook>`_.
 Learn Pandas by Hernan Rojas
 ----------------------------
 
-A set of lesson for new pandas users: `https://bitbucket.org/hrojas/learn-pandas>`__.
+A set of lesson for new pandas users: `Learn pandas <https://bitbucket.org/hrojas/learn-pandas>`__.
 
 Practical data analysis with Python
 -----------------------------------

doc/source/whatsnew/v0.24.0.rst

@@ -1400,7 +1400,7 @@ Numeric
 - Checking PEP 3141 numbers in :func:`~pandas.api.types.is_scalar` function returns ``True`` (:issue:`22903`)
 - Reduction methods like :meth:`Series.sum` now accept the default value of ``keepdims=False`` when called from a NumPy ufunc, rather than raising a ``TypeError``. Full support for ``keepdims`` has not been implemented (:issue:`24356`).
 
- Conversion
+Conversion
 ^^^^^^^^^^
 
 - Bug in :meth:`DataFrame.combine_first` in which column types were unexpectedly converted to float (:issue:`20699`)

pandas/core/generic.py

@@ -6108,16 +6108,14 @@ def fillna(self, value=None, method=None, axis=None, inplace=False,
 
     def ffill(self, axis=None, inplace=False, limit=None, downcast=None):
         """
-        Synonym for :meth:`DataFrame.fillna(method='ffill')
-            <DataFrame.fillna>`.
+        Synonym for :meth:`DataFrame.fillna` with ``method='ffill'``.
         """
         return self.fillna(method='ffill', axis=axis, inplace=inplace,
                            limit=limit, downcast=downcast)
 
     def bfill(self, axis=None, inplace=False, limit=None, downcast=None):
         """
-        Synonym for :meth:`DataFrame.fillna(method='bfill')
-            <DataFrame.fillna>`.
+        Synonym for :meth:`DataFrame.fillna` with ``method='bfill'``.
         """
         return self.fillna(method='bfill', axis=axis, inplace=inplace,
                            limit=limit, downcast=downcast)