Minor styling fixes in io/excel/_base.py

Author: miguelmarques1904

pandas/io/excel/_base.py

@@ -104,7 +104,7 @@
 engine : str, default None
     If io is not a buffer or path, this must be set to identify io.
     Acceptable values are None, "xlrd", "openpyxl", "odf", or "pyxlsb".
-    File compatibility:
+    Engine compatibility:
     "xlrd" supports most old/new Excel file formats.
     "openpyxl" engine supports newer Excel file formats.
     "odf" engine supports OpenDocument file formats (.odf, .ods, .odt).
@@ -799,9 +799,8 @@ class ExcelFile:
         .xls, .xlsx, .xlsb, .xlsm, .odf, .ods, or .odt file.
     engine : str, default None
         If io is not a buffer or path, this must be set to identify io.
-        Acceptable values are None, ``xlrd``, ``openpyxl``,
-        ``odf``, or ``pyxlsb``.
-        File compatibility:
+        Acceptable values are None, ``xlrd``, ``openpyxl``, ``odf``, or ``pyxlsb``.
+        Engine compatibility:
         ``xlrd`` supports most old/new Excel file formats.
         ``openpyxl`` engine supports newer Excel file formats.
         ``odf`` engine supports OpenDocument file formats (.odf, .ods, .odt).