Fix documentation typos

Found via `codespell`

IPython/lib/guisupport.py

@@ -2,7 +2,7 b''
 """
 Support for creating GUI apps and starting event loops.
 
-IPython's GUI integration allows interative plotting and GUI usage in IPython
+IPython's GUI integration allows interactive plotting and GUI usage in IPython
 session. IPython has two different types of GUI integration:
 
 1. The terminal based IPython supports GUI event loops through Python's

IPython/utils/text.py

@@ -661,7 +661,7 b' def compute_item_matrix(items, row_first=False, empty=None, *args, **kwargs) :'
     empty : (default None)
         default value to fill list if needed
     separator_size : int (default=2)
-        How much caracters will be used as a separation between each columns.
+        How much characters will be used as a separation between each columns.
     displaywidth : int (default=80)
         The width of the area onto which the columns should enter
 

docs/README.rst

@@ -48,7 +48,7 b' API documentation. This build target skips that.'
 You can run ``make help`` to see information on all possible make targets.
 
 To save time,
-the make targets above only proceess the files that have been changed since the
+the make targets above only process the files that have been changed since the
 previous docs build.
 To remove the previous docs build you can use ``make clean``.
 You can also combine ``clean`` with other `make` commands;

examples/IPython Kernel/Script Magics.ipynb

@@ -436,7 +436,7 b''
     "\n",
     "    c.ScriptMagics.scripts = ['R', 'pypy', 'myprogram']\n",
     "\n",
-    "And if any of these programs do not apear on your default PATH, then you would also need to specify their location with:\n",
+    "And if any of these programs do not appear on your default PATH, then you would also need to specify their location with:\n",
     "\n",
     "    c.ScriptMagics.script_paths = {'myprogram': '/opt/path/to/myprogram'}"
    ]

tools/git-mpr.py

@@ -118,7 +118,7 b' def main(*args):'
 
     if not_merged :
         print('*************************************************************************************')
-        print('the following branch have not been merged automatically, considere doing it by hand :')
+        print('The following branch has not been merged automatically, consider doing it by hand   :')
         for num, cmd in not_merged.items() :
             print( "PR {num}: {cmd}".format(num=num, cmd=cmd))
         print('*************************************************************************************')