fix typos in parallel docs

docs/source/parallel/magics.rst

@@ -7,7 +7,7 b' Parallel Magic Commands'
 We provide a few IPython magic commands
 that make it a bit more pleasant to execute Python commands on the engines interactively.
 These are mainly shortcuts to :meth:`.DirectView.execute`
-and :meth:`.AsyncResult.display_outputs` methods repsectively.
+and :meth:`.AsyncResult.display_outputs` methods respectively.
 
 These magics will automatically become available when you create a Client:
 
@@ -70,7 +70,7 b' Since engines are IPython as well, you can even run magics remotely:'
 
 And once in pylab mode with the inline backend,
 you can make plots and they will be displayed in your frontend
-if it suports the inline figures (e.g. notebook or qtconsole):
+if it supports the inline figures (e.g. notebook or qtconsole):
 
 .. sourcecode:: ipython
 

docs/source/parallel/parallel_details.rst

@@ -170,7 +170,7 b' communication API for engines via its low-level :meth:`send_apply_message` metho'
 by all higher level methods of its Views.
 
 f : function
-    The fuction to be called remotely
+    The function to be called remotely
 args : tuple/list
     The positional arguments passed to `f`
 kwargs : dict

docs/source/parallel/parallel_process.rst

@@ -800,7 +800,7 b' which is a UUID, and thus different every time.'
 
 .. sourcecode:: python
 
-    # To keep persistant task history in MongoDB:
+    # To keep persistent task history in MongoDB:
     c.MongoDB.database = 'tasks'
     
     # and in SQLite:
@@ -853,7 +853,7 b' mpi4py, add:'
     c.MPI.use = 'mpi4py'
 
 In this case, the Engine will use our default mpi4py init script to set up
-the MPI environment prior to exection.  We have default init scripts for
+the MPI environment prior to execution.  We have default init scripts for
 mpi4py and pytrilinos.  If you want to specify your own code to be run
 at the beginning, specify `c.MPI.init_script`.