DOC: add more sections to spreadsheet comparison (pandas-dev#38993)

Author: afeld

doc/source/_static/spreadsheets/conditional.png

@@ -1,4 +1,4 @@
-pandas provides similar vectorized operations by specifying the individual ``Series`` in the
+pandas provides vectorized operations by specifying the individual ``Series`` in the
 ``DataFrame``. New columns can be assigned in the same way. The :meth:`DataFrame.drop` method drops
 a column from the ``DataFrame``.
 

doc/source/_static/spreadsheets/filter.png

@@ -626,7 +626,7 @@ the pandas-equivalent operations compared to software you already know:
                 </div>
                 <div class="col-lg-6 col-md-6 col-sm-6 col-xs-12 d-flex">
                     <div class="card text-center intro-card shadow">
-                    <img src="../_static/logo_excel.svg" class="card-img-top" alt="Excel logo" height="52">
+                    <img src="../_static/spreadsheets/logo_excel.svg" class="card-img-top" alt="Excel logo" height="52">
                     <div class="card-body flex-fill">
                         <p class="card-text">Users of <a href="https://en.wikipedia.org/wiki/Microsoft_Excel">Excel</a>
                             or other spreadsheet programs will find that many of the concepts are transferrable to pandas.</p>