README.md: Add tools/numasched contents (#5187)

bcc commit d188e07 ("tools: add numasched: trace task switch between
NUMA (#4396)") [1] add tools/numasched.py.

Link: d188e07 [1]

Signed-off-by: Rong Tao <[email protected]>

Author: Rtoax

README.md

@@ -118,6 +118,7 @@ pair of .c and .py files, and some are directories of files.
 - tools/[killsnoop](tools/killsnoop.py): Trace signals issued by the kill() syscall. [Examples](tools/killsnoop_example.txt).
 - tools/[kvmexit](tools/kvmexit.py): Display the exit_reason and its statistics of each vm exit. [Examples](tools/kvmexit_example.txt).
 - tools/[memleak](tools/memleak.py): Display outstanding memory allocations to find memory leaks. [Examples](tools/memleak_example.txt).
+- tools/[numasched](tools/numasched.py): Track the migration of processes between NUMAs. [Examples](tools/numasched_example.txt).
 - tools/[oomkill](tools/oomkill.py): Trace the out-of-memory (OOM) killer. [Examples](tools/oomkill_example.txt).
 - tools/[pidpersec](tools/pidpersec.py): Count new processes (via fork). [Examples](tools/pidpersec_example.txt).
 - tools/[rdmaucma](tools/rdmaucma.py): Trace RDMA Userspace Connection Manager Access events. [Examples](tools/rdmaucma_example.txt).