Docs: openharmony-vision grammatical error fix

* The development of the these capabilities, removed 'the' for
  grammatical error, fixes issue#75

Signed-off-by: Arul Kumaran <arulkumaran.devarajan@huawei.com>

overview/openharmony-vision.rst

@@ -18,7 +18,7 @@ set of builtin system capabilities on top of commodity open source kernels that
 allows sharing of resources and collaboration across distributed devices of
 various classes.
 
-The development of the these capabilities will happen through an open community
+The development of these capabilities will happen through an open community
 project along with other interested parties.
 
 - For an end-user, |main_project_name| will integrate the multiple, standalone