Fix another typo in index.md
@@ -194,7 +194,7 @@ The second clause of the pseudo logic is implemented with the following TEAL.
```teal
// The following six lines of teal check if the
-// transaction is reciever is set to addr1 and that the CloseRemainderTo
+// transaction is receiver is set to addr1 and that the CloseRemainderTo
// transaction property is also set to addr1.
// Once completed the stack will have the 0 or 1
// from the previous clause and a 1 or 0 from the
