Fix cqlsh xrefs (#237)

Author: eric-schneider

modules/ROOT/pages/connect-clients-to-proxy.adoc

@@ -211,7 +211,7 @@ If there is no CQL version that is compatible with both clusters, `cqlsh` won't
 
 To connect `cqlsh` to a {product-proxy} instance, do the following:
 
-. On a machine that can connect to your {product-proxy} instance, xref:cql:connect:start-cqlsh-linux-mac.adoc[download and install the {cql-shell}].
+. On a machine that can connect to your {product-proxy} instance, xref:cql:cqlsh:use-cql-shell.adoc[download and install the {cql-shell}].
 +
 Any version of `cqlsh` can connect to {product-proxy}, but some clusters require a specific `cqlsh` version.
 

modules/sideloader/pages/migrate-sideloader.adoc

@@ -205,7 +205,7 @@ During the migration, {sstable-sideloader} automatically populates any SAI defin
 * Exact primary key definition as defined in your origin cluster, including the partition key, clustering columns, and ascending/descending ordering clauses.
 You must define partition key columns and clustering columns in the exact order that they are defined on your origin cluster.
 +
-To retrieve schema properties, you can run the `xref:astra@cql:reference:cqlsh-commands/describe-keyspace.adoc[DESCRIBE KEYSPACE]` command on your origin cluster:
+To retrieve schema properties, you can run the `xref:astra@cql:cqlsh:cqlsh-commands/describe-keyspace.adoc[DESCRIBE KEYSPACE]` command on your origin cluster:
 +
 [source,cql,subs="+quotes"]
 ----