Post public review notes / v1.0.0-rc5

- This commit bumps the spec to RC5.

- It includes some clarifications to Zkt and is intended to be a final version
  which committies can review post public review / pre ratification.

 On branch master
 Your branch is up-to-date with 'origin/master'.

 Changes to be committed:
	modified:   public-review-summary.adoc
	modified:   riscv-crypto-spec-scalar.adoc

doc/scalar/public-review-summary.adoc

@@ -91,12 +91,8 @@ The following is a short summary of their content and any conclusions.
   optimisations are _out of scope_ for `Zkt`, and that it applies only
   to intra-instruction latency.
 
-* This recommendation has not been applied at the time of writing, but is
-  open for consideration in
+* This recommendation was merged in
   link:https://github.com/riscv/riscv-crypto/pull/137[PR#137].
-  We expect that this can be merged in without problems once folks agree
-  the proposal addresses the issue well, as it is not a functional change,
-  but a clarification.
 
 === Reconsider destructive encoding form for AES instructions
 

doc/scalar/riscv-crypto-spec-scalar.adoc

@@ -3,7 +3,7 @@
 :description: The scalar cryptography and entropy source extensions for the RISC-V ISA.
 :company: RISC-V.org
 :revdate:  8'th October, 2021
-:revnumber: v1.0.0-rc4
+:revnumber: v1.0.0-rc5
 :revremark: This document is in the Frozen state. Change is unlikely but possible, with a high threshold for consideration.
 :url-riscv: http://riscv.org
 :doctype: book