Update documentation.

tests/PerformanceHarness/README.md

@@ -8,7 +8,7 @@ The `PerformanceTest`'s main goal is to measure current peak performance metrics
 
 The `PerformanceTestBasic` test performs a single basic performance test that targets a configurable TPS target and, if successful, reports statistics on performance metrics measured during the test.  It configures and launches a blockchain test environment, creates wallets and accounts for testing, and configures and launches transaction generators for creating specific transaction load in the ecosystem.  Finally it analyzes the performance of the system under the configuration through log analysis and chain queries and produces a [Performance Test Basic Report](#performance-test-basic-report).
 
-The `launch_generators.py` support script provides a means to easily calculate and spawn the number of transaction generator instances to generate a given target TPS, distributing generation load between the instances in a fair manner such that the aggregate load meets the requested test load.
+The `TransactionGeneratorsLauncher` provides a means to easily calculate and spawn the number of transaction generator instances to generate a given target TPS, distributing generation load between the instances in a fair manner such that the aggregate load meets the requested test load.
 
 The `log_reader.py` support script is used primarily to analyze `nodeos` log files to glean information about generated blocks and transactions within those blocks after a test has concluded.  This information is used to produce the performance test report.