Fixed two typos in documentation

docs/topics/i18n/translation.txt

@@ -145,7 +145,7 @@ preceding the string, e.g.::
         output = ugettext("Welcome to my site.")
 
 The comment will then appear in the resulting ``.po`` file associated with the
-translatable contruct located below it and should also be displayed by most
+translatable construct located below it and should also be displayed by most
 translation tools.
 
 .. note:: Just for completeness, this is the corresponding fragment of the
@@ -342,7 +342,7 @@ model, do the following::
     class MyThing(models.Model):
         name = models.CharField(help_text=_('This is the help text'))
 
-You can mark names of ``ForeignKey``, ``ManyTomanyField`` or ``OneToOneField``
+You can mark names of ``ForeignKey``, ``ManyToManyField`` or ``OneToOneField``
 relationship as translatable by using their ``verbose_name`` options::
 
     class MyThing(models.Model):