Update comments

src/config.c

@@ -2502,6 +2502,8 @@ static int updateReplBacklogSize(const char **err) {
     return 1;
 }
 
+/* Adjusts `maxmemory_reserved_scale` to ensure it remains within the valid range of 10 to 60, if set.
+ * Once adjusted, the available memory is recalculated to reflect the new reserved memory. */
 static int updateMaxmemoryReserved(const char **err) {
     UNUSED(err);
     if (server.maxmemory_reserved_scale) {

valkey.conf

@@ -1249,10 +1249,10 @@ acllog-max-len 128
 #
 # active-expire-effort 1
 #
-# It allows the valkey to evict keys earlier. The value of this parameter represents
-# percent of the maxmemory value. It means how much memory the valkey instance want to hold
-# not to store the data.
-# Default is 0, and the value could be set between 10 to 60.
+# This parameter allows Valkey to evict keys earlier. The value represents
+# a percentage of the maxmemory limit, indicating how much memory the Valkey instance reserves
+# without storing data.
+# The default is 0, and the value can be set between 10 and 60.
 #
 # maxmemory-reserved-scale 0