Fix typos in parallel doc

docs/source/parallel/parallel_multiengine.rst

@@ -522,13 +522,13 b' be collected and raise a CompositeError, as demonstrated in the next section.'
 
     In [69]: from IPython.parallel import require
 
-    In [70]: @require('re'):
+    In [70]: @require('re')
        ....: def findall(pat, x):
        ....:     # re is guaranteed to be available
        ....:     return re.findall(pat, x)
           
     # you can also pass modules themselves, that you already have locally:
-    In [71]: @require(time):
+    In [71]: @require(time)
        ....: def wait(t):
        ....:     time.sleep(t)
        ....:     return t

docs/source/parallel/parallel_task.rst

@@ -186,7 +186,7 b' will be assigned to another engine. If the dependency returns *anything other th'
        ....: def wintask():
        ....:    do_windows_stuff()
     
-In this case, any time you apply ``mytask``, it will only run on an OSX machine.
+In this case, any time you apply ``mactask``, it will only run on an OSX machine.
 ``@depend`` is just like ``apply``, in that it has a ``@depend(f,*args,**kwargs)``
 signature.