Fix typo

satwikkansal · satwikkansal · commit 9a2718ae3a0d · 2019-12-27T20:05:17.000+05:30
Closes satwikkansal#162
diff --git a/README.md b/README.md
@@ -259,7 +259,7 @@ This saved one line of code, and implicitly prevented invoking `some_func` twice
 
 - As usual, parenthesizing of an expression containing `=` operator is not allowed. Hence the syntax error in `(a, b = 6, 9)`. 
 
-- The syntax of the Walrus operator is of the form `NAME: expr`, where `NAME` is a valid identifier, and `expr` is a valid expression. Hence, iterable packing and unpacking are not supported which means, 
+- The syntax of the Walrus operator is of the form `NAME:= expr`, where `NAME` is a valid identifier, and `expr` is a valid expression. Hence, iterable packing and unpacking are not supported which means, 
 
   - `(a := 6, 9)` is equivalent to `((a := 6), 9)` and ultimately `(a, 9) ` (where `a`'s value is 6')
 
