Fix backend variables table

Author: vbaranov

setup/env-variables/backend-env-variables.md

@@ -318,7 +318,8 @@ See the [Time format](backend-env-variables.md#time-format) section for more inf
 | `CACHE_AVERAGE_BLOCK_PERIOD`                          | Time to initiate first calculation and caching of average block period after start/re-start of the application.                                                                                                                                                                                                                            | <p>Version: v4.1.3+<br>Default: <code>30m</code><br>Applications: API, Indexer</p>                          |
 | `CACHE_MARKET_HISTORY_PERIOD`                         | Update of market history cache.                                                                                                                                                                                                                                                                                                            | <p>Version: v4.1.3+<br>Default: <code>6h</code><br>Applications: API, Indexer</p>                           |
 | `CACHE_ADDRESS_TRANSACTIONS_COUNTER_PERIOD`           | Time to live of address' transaction counter. [Time format](backend-env-variables.md#time-format). Introduced in [#3330](https://github.com/poanetwork/blockscout/pull/3330).                                                                                                                                                              | <p>Version: v3.4.0+<br>Default: <code>1h</code><br>Applications: API, Indexer</p>                           |
-| `CACHE_ADDRESS_TOKENS_USD_SUM_PERIOD`                 | Managing of cache invalidation period for the sum of USD value of tokens per tokens' holder address.                                                                                                                                                                                                                                       | <p>Version: v3.5.0+<br>Default: <code>1h</code><br>Applications: API, Indexer</p>                           || `TOKEN_BALANCE_ON_DEMAND_FETCHER_THRESHOLD`           | A threshold to invalidate token balance cache.                                                                                                                                                                                                                                                                                             | <p>Version: v5.1.2+<br>Default: <code>1h</code><br>Applications: API, Indexer</p>                           |
+| `CACHE_ADDRESS_TOKENS_USD_SUM_PERIOD`                 | Managing of cache invalidation period for the sum of USD value of tokens per tokens' holder address.                                                                                                                                                                                                                                       | <p>Version: v3.5.0+<br>Default: <code>1h</code><br>Applications: API, Indexer</p>                           |
+| `TOKEN_BALANCE_ON_DEMAND_FETCHER_THRESHOLD`           | A threshold to invalidate token balance cache.                                                                                                                                                                                                                                                                                             | <p>Version: v5.1.2+<br>Default: <code>1h</code><br>Applications: API, Indexer</p>                           |
 | `COIN_BALANCE_ON_DEMAND_FETCHER_THRESHOLD`            | A threshold to invalidate coin balance cache.                                                                                                                                                                                                                                                                                              | <p>Version: v5.1.2+<br>Default: <code>1h</code><br>Applications: API, Indexer</p>                           |
 | `CONTRACT_CODE_ON_DEMAND_FETCHER_THRESHOLD`           | An initial threshold (for exponential backoff) to fetch smart-contract bytecode on-demand. Implemented in [#9708](https://github.com/blockscout/blockscout/pull/9708).                                                                                                                                                                     | <p>Version: v6.4.0+<br>Default: <code>5s</code><br>Applications: API, Indexer</p>                           |
 | `CACHE_ADDRESS_TOKEN_TRANSFERS_COUNTER_PERIOD`        | Interval to restart the task, which calculates the number of token transfers at the address. Implemented in [#4699](https://github.com/poanetwork/blockscout/pull/4699).                                                                                                                                                                   | <p>Version: v4.0.0+<br>Default: <code>1h</code><br>Applications: API, Indexer</p>                           |