Migrate Review Schedule to Formal Reviews (#228)

Author: PeterTurcan

contributor-guide/modules/ROOT/pages/release-process.adoc

@@ -74,4 +74,5 @@ If issues are found with a release candidate that are important enough to addres
 For details of the Release Process that are pertinent to users, refer to the 
 User Guide xref:user-guide:ROOT:release-process.adoc[].
 
-* xref:testing/boost-test-matrix.adoc[]
+* xref:testing/boost-test-matrix.adoc[]
+* xref:formal-reviews:ROOT:review-results.adoc[]

formal-reviews/modules/ROOT/nav.adoc

@@ -10,3 +10,4 @@ Official repository: https://github.com/boostorg/website-v2-docs
 * xref:submissions.adoc[]
 * xref:writing-reviews.adoc[]
 * xref:managing-reviews.adoc[]
+* xref:review-results.adoc[]