Fix minor bug

Author: kabilar

docs-parts/computation/01-autopopulate_lang1.rst

@@ -13,6 +13,6 @@
         def make(self, key):
             img = (test.Image & key).fetch1('image')
             key['filtered_image'] = myfilter(img)
-            self.insert(key)
+            self.insert1(key)
 
 The ``make`` method receives one argument: the dict ``key`` containing the primary key value of an element of :ref:`key source <keysource>` to be worked on.