DOC: fixes empty boxes + too wide:

- excel: code snippets too wide
- visualisation: for some reason now empty boxes when ipython code blocks with plt.figure were suppressed, but not when removing the semicolon

Author: jorisvandenbossche

doc/source/io.rst

@@ -1878,14 +1878,14 @@ to be parsed.
 
 .. code-block:: python
 
-   read_excel('path_to_file.xls', 'Sheet1', parse_cols=2, index_col=None, na_values=['NA'])
+   read_excel('path_to_file.xls', 'Sheet1', parse_cols=2)
 
 If `parse_cols` is a list of integers, then it is assumed to be the file column
 indices to be parsed.
 
 .. code-block:: python
 
-   read_excel('path_to_file.xls', 'Sheet1', parse_cols=[0, 2, 3], index_col=None, na_values=['NA'])
+   read_excel('path_to_file.xls', 'Sheet1', parse_cols=[0, 2, 3])
 
 To write a DataFrame object to a sheet of an Excel file, you can use the
 ``to_excel`` instance method.  The arguments are largely the same as ``to_csv``

doc/source/visualization.rst

@@ -261,7 +261,7 @@ bar plot:
 .. ipython:: python
    :suppress:
 
-   plt.figure();
+   plt.figure()
 
 .. ipython:: python
 
@@ -275,7 +275,7 @@ To produce a stacked bar plot, pass ``stacked=True``:
 .. ipython:: python
    :suppress:
 
-   plt.figure();
+   plt.figure()
 
 .. ipython:: python
 
@@ -287,7 +287,7 @@ To get horizontal bar plots, pass ``kind='barh'``:
 .. ipython:: python
    :suppress:
 
-   plt.figure();
+   plt.figure()
 
 .. ipython:: python
 
@@ -320,7 +320,7 @@ New since 0.10.0, the ``by`` keyword can be specified to plot grouped histograms
 .. ipython:: python
    :suppress:
 
-   plt.figure();
+   plt.figure()
 
 .. ipython:: python
 
@@ -434,12 +434,12 @@ Scatter plot matrix
 .. _visualization.kde:
 
 *New in 0.8.0* You can create density plots using the Series/DataFrame.plot and
-setting `kind='kde'`:
+setting ``kind='kde'``:
 
 .. ipython:: python
    :suppress:
 
-   plt.figure();
+   plt.figure()
 
 .. ipython:: python
 
@@ -460,7 +460,7 @@ too dense to plot each point individually.
 .. ipython:: python
    :suppress:
 
-   plt.figure();
+   plt.figure()
 
 .. ipython:: python
 
@@ -486,7 +486,7 @@ given by column ``z``. The bins are aggregated with numpy's ``max`` function.
 .. ipython:: python
    :suppress:
 
-   plt.figure();
+   plt.figure()
 
 .. ipython:: python