docs: add workers-timeout under worker options

docs/Configuration.md

@@ -21,6 +21,7 @@ Will create a datadir of `~/.bcoin_spv`, containing a chain database, wallet dat
 - `network`: Which network's chainparams to use for the node (main, testnet, regtest, or segnet4) (default: main).
 - `workers`: Whether to use a worker process pool for transaction verification (default: true).
 - `workers-size`: Number of worker processes to spawn for transaction verification. By default, the worker pool will be sized based on the number of CPUs/cores in the machine.
+- `workers-timeout`: Worker process execution timeout in milliseconds (default: 120000).
 - `sigcache-size`: Max number of items in signature cache.
 
 ## Node Options