Make whitespace clear in debug spec

Author: davepeck

peps/pep-0750.rst

@@ -487,8 +487,8 @@ In particular, ``t'{expr=}'`` is treated as ``t'expr={expr!r}'``:
 If a separate format string is also provided, ``t'{expr=:fmt}`` is treated instead as
 ``t'expr={expr!s:fmt}'``.
 
-Whitespace is preserved in the debug specifier, so ``t'{expr =}'`` is treated as
-``t'expr ={expr!r}'``.
+Whitespace is preserved in the debug specifier, so ``t'{expr = }'`` is treated as
+``t'expr = {expr!r}'``.
 
 
 Raw Template Strings