crypto: jitter - fix CRYPTO_JITTERENTROPY help text

Correct various small problems in the help text:
a. change 2 spaces to ", "
b. finish an incomplete sentence
c. change non-working URL to working URL

Fixes: a9a98d4 ("crypto: Kconfig - simplify compression/RNG entries")
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218458
Signed-off-by: Randy Dunlap <[email protected]>
Cc: Bagas Sanjaya <[email protected]>
Cc: Robert Elliott <[email protected]>
Cc: Christoph Biedl <[email protected]>
Cc: Herbert Xu <[email protected]>
Cc: "David S. Miller" <[email protected]>
Cc: [email protected]
Acked-by: Bagas Sanjaya <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>

crypto/Kconfig

@@ -1269,10 +1269,11 @@ config CRYPTO_JITTERENTROPY
 
 	  A non-physical non-deterministic ("true") RNG (e.g., an entropy source
 	  compliant with NIST SP800-90B) intended to provide a seed to a
-	  deterministic RNG (e.g.  per NIST SP800-90C).
+	  deterministic RNG (e.g., per NIST SP800-90C).
 	  This RNG does not perform any cryptographic whitening of the generated
+	  random numbers.
 
-	  See https://www.chronox.de/jent.html
+	  See https://www.chronox.de/jent/
 
 if CRYPTO_JITTERENTROPY
 if CRYPTO_FIPS && EXPERT