typo fixing

specs/fault-proof.md

@@ -63,7 +63,7 @@ The program uses the pre-image oracle to query any input data that is understood
 - External data not already part of the program code. See [Pre-image hinting routes](#pre-image-hinting-routes).
 
 The communication happens over a simple request-response wire protocol,
-see [Pre-image communcation](#pre-image-communication).
+see [Pre-image communication](#pre-image-communication).
 
 ### Pre-image key types
 
@@ -184,7 +184,7 @@ Hinting is implemented with a request-acknowledgement wire-protocol over a block
 ```text
 <request> := <length prefix> <hint bytes>
 
-<repsonse> := <ack>
+<response> := <ack>
 
 <length prefix> := big-endian uint32  # length of <hint bytes>
 <hint bytes> := byte sequence