typo fix stdlib.fc

Author: Hack666r

price_feeds/ton/send_usd/contracts/imports/stdlib.fc

@@ -631,7 +631,7 @@ int get_seed() impure asm "RANDSEED";
 ;;; Equivalent to randomize(cur_lt());.
 () randomize_lt() impure asm "LTIME" "ADDRAND";
 
-;;; Checks whether the data parts of two slices coinside
+;;; Checks whether the data parts of two slices coincide
 int equal_slices_bits(slice a, slice b) asm "SDEQ";
 ;;; Checks whether b is a null. Note, that FunC also has polymorphic null? built-in.
 int builder_null?(builder b) asm "ISNULL";