squash: add linebreaks in docs

Author: not-an-aardvark

doc/api/crypto.md

@@ -1226,7 +1226,9 @@ comparing HMAC digests or secret values like authentication cookies or
 
 `a` and `b` must both be `Buffer`s, and they must have the same length.
 
-**Note**: Use of `crypto.timingSafeEqual` does not guarantee that the *surrounding* code is timing-safe. Care should be taken to ensure that the surrounding code does not introduce timing vulnerabilities.
+**Note**: Use of `crypto.timingSafeEqual` does not guarantee that the
+*surrounding* code is timing-safe. Care should be taken to ensure that the
+surrounding code does not introduce timing vulnerabilities.
 
 ### crypto.privateEncrypt(private_key, buffer)