docs: fix simple typo, dictinaries -> dictionaries

There is a small typo in jet/dashboard/modules.py.

Should read `dictionaries` rather than `dictinaries`.

Signed-off-by: Tim Gates <tim.gates@iress.com>

jet/dashboard/modules.py

@@ -222,7 +222,7 @@ def init_with_context(self, context):
     #: Links are contained in ``children`` attribute which you can pass as constructor parameter
     #: to make your own preinstalled link lists.
     #:
-    #: ``children`` is an array of dictinaries::
+    #: ``children`` is an array of dictionaries::
     #:
     #:     [
     #:          {