Update Tools/README with missing descriptions

Tools/README

@@ -16,7 +16,8 @@ clinic          A preprocessor for CPython C files in order to automate
 
 freeze          Create a stand-alone executable from a Python program.
 
-ftscalingbench  Benchmarks for free-threading and finding bottlenecks.
+ftscalingbench  Runs a set of small benchmarks to help identify scaling
+                bottlenecks in the free-threaded interpreter.
 
 gdb             Python code to be run inside gdb, to make it easier to
                 debug Python itself (by David Malcolm).
@@ -28,11 +29,13 @@ i18n            Tools for internationalization. pygettext.py
 
 importbench     A set of micro-benchmarks for various import scenarios.
 
-inspection      Tooling for PEP-678 "Safe external debugger interface for CPython".
+inspection      A set of benchmarks to measure get_stack_trace() performance.
 
-jit             Tooling for building the JIT.
+jit             Documentation and tools for building the JIT compiler. See
+                jit/README.md for more information.
 
-lockbench       Benchmarks for PyMutex and critical sections.
+lockbench       Benchmarks to measure the performance of PyMutex and
+                PyThread_type_lock locks with short critical sections.
 
 msi             Support for packaging Python as an MSI package on Windows.
 
@@ -43,8 +46,8 @@ patchcheck      Tools for checking and applying patches to the Python source cod
 
 peg_generator   PEG-based parser generator (pegen) used for new parser.
 
-scripts         A number of useful single-file programs, e.g. run_tests.py
-                which runs the Python test suite.
+scripts         A number of useful single-file programs. See scripts/README for
+                more information.
 
 ssl             Scripts to generate ssl_data.h from OpenSSL sources, and run
                 tests against multiple installations of OpenSSL and LibreSSL.

Tools/scripts/README

@@ -3,13 +3,22 @@ useful while building, extending or managing Python.
 
 checkpip.py               Checks the version of the projects bundled in ensurepip
                           are the latest available
+
 combinerefs.py            A helper for analyzing PYTHONDUMPREFS output
+
 divmod_threshold.py       Determine threshold for switching from longobject.c
                           divmod to _pylong.int_divmod()
+
 idle3                     Main program to start IDLE
+
+long_conv_tables.py       Compute tables for longobject.c long_from_non_binary_base()
+
 pydoc3                    Python documentation browser
-run_tests.py              Run the test suite with more sensible default options
+
+sortperf.py               List sort performance test, requires the pyperf module.
+
 summarize_stats.py        Summarize specialization stats for all files in the
                           default stats folders
+
 var_access_benchmark.py   Show relative speeds of local, nonlocal, global,
                           and built-in access

Tools/scripts/sortperf.py

@@ -7,7 +7,7 @@
 
 To run:
 
-    python3 Tools/scripts/sortperf
+    python3 Tools/scripts/sortperf.py
 
 Options: