fix(guide): move guide to english directory

client/src/pages/guide/english/python/boolean-operations/index.md

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+---
+title: Python Boolean Operations
+---
+<a href='https://docs.python.org/3/reference/expressions.html#and' target='_blank' rel='nofollow'>`and`</a>, <a href='https://docs.python.org/3/reference/expressions.html#or' target='_blank' rel='nofollow'>`or`</a>, <a href='https://docs.python.org/3/reference/expressions.html#not' target='_blank' rel='nofollow'>`not`</a>
+
+<a href='https://docs.python.org/3/library/stdtypes.html#boolean-operations-and-or-not' target='_blank' rel='nofollow'>Python Docs - Boolean Operations</a>
+
+These are the Boolean operations, ordered by ascending priority:
+
+Operation | Result | Notes  
+--------- | ------------------------------------ | -----  
+x or y | if x is false, then y, else x | (1)  
+x and y | if x is false, then x, else y | (2)  
+not x | if x is false, then True, else False | (3)
+
+**Notes:**
+
+1.  This is a short-circuit operator, so it only evaluates the second argument if the first one is False.
+2.  This is a short-circuit operator, so it only evaluates the second argument if the first one is True.
+3.  not has a lower priority than non-Boolean operators, so not a == b is interpreted as not (a == b), and a == not b is a syntax error.
+
+## Examples:
+
+### `not`:
+
+    >>> not True
+    False
+    >>> not False
+    True
+
+### `and`:
+
+    >>> True and False    # Short-circuited at first argument.
+    False
+    >>> False and True    # Second argument is evaluated.
+    False
+    >>> True and True     # Second argument is evaluated.
+    True
+
+### `or`:
+
+    >>> True or False    # Short-circuited at first argument.
+    True
+    >>> False or True    # Second argument is evaluated.
+    True
+    >>> False or False   # Second argument is evaluated.
+    False