fix(guide): simplify directory structure

guide/english/python/difference-between-is-and-equal-equal-operators/index.md

@@ -0,0 +1,26 @@
+---
+title: Difference between Python 'is' and '==' operators
+---
+`is` is a check for object identity - ie, checking if two or more variables are referring to the same object. You can't overload `is`.
+
+`==` evaluates to true if object referred to by the variables are equal. You can overload `==` via the `__eq__` operator.
+
+
+## Return Value
+
+The return value for both would be either `True` or `False`.
+
+## Code Sample
+
+    a = 2.3
+    a is 2.3  # => False
+    a == 2.3  # => True
+
+    a = [234,123,321]
+    b = [234,123,321]
+    a == b  # => True
+    a is b  # => False
+    a = b
+    a == b  # => True
+    a is b  # => True, because if we change a, b changes too
+