Update index.md

docs/book/src/bytecode/index.md

@@ -73,7 +73,7 @@ To verify a contract's bytecode root you may call `verify_bytecode_root()` or `v
 
 ### Computing the Address from Bytecode
 
-To compute a predicates's address you may call the `compute_predicate_address()` or `compute_predicate_address_with_configurables()` functions.
+To compute a predicate's address you may call the `compute_predicate_address()` or `compute_predicate_address_with_configurables()` functions.
 
 ```sway
 {{#include ../../../../examples/bytecode/src/main.sw:compute_predicate_address}}