Update file location; include command (#26605)

Author: mattpollard

lib/redirects/static/redirect-exceptions.txt

@@ -1,5 +1,7 @@
-# Redirects are cached in 'lib/redirects/.redirects-cache_*.json'. If changes made here are not being reflected
-# on your local server, delete the cache files and restart your server.
+# Redirects are cached in 'lib/redirects/.redirects-cache.json'. If changes made here are not being reflected
+# on your local server, delete the cache file by running the following command, then restart your server.
+#
+#   rm lib/redirects/.redirects-cache.json
 
 # These urls went from being free-pro-team, but are now versioned for more than one enterprise version and enterprise-cloud
 # Shipped in pull #20947 on 10/15/21
@@ -460,4 +462,4 @@
 - /code-security/security-overview/viewing-the-security-overview
 
 /enterprise-cloud@latest/code-security/security-overview/filtering-alerts-in-the-security-overview
-- /code-security/security-overview/filtering-alerts-in-the-security-overview
+- /code-security/security-overview/filtering-alerts-in-the-security-overview