bug #6483 Fix typo: signifcantly => significantly (ifdattic)

This PR was submitted for the 3.0 branch but it was merged into the 2.3 branch instead (closes #6483).

Discussion
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Fix typo: signifcantly => significantly

| Q             | A
| ------------- | ---
| Doc fix?      | yes
| New docs?     | no
| Applies to    | all
| Fixed tickets |

Commits
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cfcd8df Fix typo: signifcantly => significantly

Author: wouterj

Diff for: cookbook/workflow/homestead.rst

@@ -11,7 +11,7 @@ quickly.
 .. tip::
 
     Due to the amount of filesystem operations in Symfony (e.g. updating cache
-    files and writing to log files), Symfony can slow down signifcantly. To
+    files and writing to log files), Symfony can slow down significantly. To
     improve the speed, consider :ref:`overriding the cache and log directories <override-cache-dir>`
     to a location outside the NFS share (for instance, by using
     :phpfunction:`sys_get_temp_dir`). You can read `this blog post`_ for more