Update search memory info (#1979)

Author: alonre24

content/commands/info.md

@@ -551,14 +551,14 @@ _Redis Query Engine fields_
 *   `search_fields_geoshape_Sortable`: The total number of `SORTABLE GEOSHAPE` fields across all indexes in the shard. This field appears only if its value is larger than 0. <sup>[2](#tnote-2)</sup>
 *   `search_fields_geoshape_NoIndex`: The total number of `NOINDEX GEOSHAPE` fields across all indexes in the shard; i.e., used for sorting only but not indexed. This field appears only if its value is larger than 0. <sup>[2](#tnote-2)</sup>
 *   `search_fields_<field>_IndexErrors`: The total number of indexing failures caused by attempts to index a document containing <field> field. <sup>[1](#tnote-1)</sup>
-*   `search_used_memory_indexes`: The total memory allocated by all indexes in the shard in bytes. <sup>[1](#tnote-1)</sup>
-*   `search_used_memory_indexes_human`: The total memory allocated by all indexes in the shard in MB. <sup>[1](#tnote-1)</sup>
-*   `search_smallest_memory_index`: The memory usage of the index with the smallest memory usage in the shard in bytes. <sup>[1](#tnote-1)</sup>
-*   `search_smallest_memory_index_human`: The memory usage of the index with the smallest memory usage in the shard in MB. <sup>[1](#tnote-1)</sup>
-*   `search_largest_memory_index`: The memory usage of the index with the largest memory usage in the shard in bytes. <sup>[1](#tnote-1)</sup>
-*   `search_largest_memory_index_human`: The memory usage of the index with the largest memory usage in the shard in MB. <sup>[1](#tnote-1)</sup>
-*   `search_total_indexing_time`: The total time spent on indexing operations, excluding the background indexing of vectors in the HNSW graph. <sup>[1](#tnote-1)</sup>
 *   `search_used_memory_vector_index`: The total memory usage of all vector indexes in the shard. <sup>[1](#tnote-1)</sup>
+*   `search_used_memory_indexes`: The estimated total memory allocated by all indexes in the shard in bytes (including vector indexes memory accounted in `search_used_memory_vector_index`). <sup>[1](#tnote-1)</sup>
+*   `search_used_memory_indexes_human`: The estimated total memory allocated by all indexes in the shard in MB. <sup>[1](#tnote-1)</sup>
+*   `search_smallest_memory_index`: The estimated memory usage of the index with the smallest memory usage in the shard in bytes. <sup>[1](#tnote-1)</sup>
+*   `search_smallest_memory_index_human`: The estimated memory usage of the index with the smallest memory usage in the shard in MB. <sup>[1](#tnote-1)</sup>
+*   `search_largest_memory_index`: The estimated memory usage of the index with the largest memory usage in the shard in bytes. <sup>[1](#tnote-1)</sup>
+*   `search_largest_memory_index_human`: The estimated memory usage of the index with the largest memory usage in the shard in MB. <sup>[1](#tnote-1)</sup>
+*   `search_total_indexing_time`: The total time spent on indexing operations, excluding the background indexing of vectors in the HNSW graph. <sup>[1](#tnote-1)</sup>
 *   `search_bytes_collected`: The total amount of memory freed by the garbage collectors from indexes in the shard memory in bytes. <sup>[1](#tnote-1)</sup>
 *   `search_total_cycles`: The total number of garbage collection cycles executed. <sup>[1](#tnote-1)</sup>
 *   `search_total_ms_run`: The total duration of all garbage collection cycles in the shard, measured in milliseconds. <sup>[1](#tnote-1)</sup>