DOCSP-30025 Corrects C2C name and adds a link (#3194) (#3221)

* DOCSP-30025 Corrects name and adds a link

* Fixes per Dave

Author: kennethdyer

snooty.toml

@@ -304,6 +304,10 @@ node-libmongocrypt-binding-docs = "https://github.com/mongodb/libmongocrypt/tree
 csharp-api-docs = "https://mongodb.github.io/mongo-csharp-driver/2.18/apidocs/html"
 java-api-docs = "https://mongodb.github.io/mongo-java-driver/4.7/apidocs"
 go-api-docs = "https://pkg.go.dev/go.mongodb.org/[email protected]"
+# C2C Product
+c2c-full-product-name = "MongoDB Cluster-to-Cluster Sync"
+c2c-product-name = "Cluster-to-Cluster Sync"
+c2c-docs = "https://www.mongodb.com/docs/cluster-to-cluster-sync/current"
 
 [[banners]]
 targets = [

source/reference/command/setFeatureCompatibilityVersion.txt

@@ -126,7 +126,7 @@ safely retry the command as the operation is idempotent.
 
 .. _setFeatureCompatibilityVersion-user-write-blocking:
 
-Cluster-to-Cluster Replication and User Write Blocking
+{+c2c-product-name+} and User Write Blocking
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 .. include:: /includes/downgrade-for-user-write-blocking.rst
@@ -144,6 +144,9 @@ Cluster-to-Cluster Replication and User Write Blocking
 #. Downgrade the feature compatibility version using
    :dbcommand:`setFeatureCompatibilityVersion`.
 
+For more information on {+c2c-full-product-name+}, see the 
+`documentation <{+c2c-docs+}>`__.
+
 Feature Compatibility in Arbiters
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~