docs: switch to https://ihkmckernel.readthedocs.io and add contents

Change-Id: I9515034ac372dbe554e1010f646b382c5dc94458

docs/boot_run_shutdown.rst

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+Boot McKernel
+----------------
+
+A boot script called ``mcreboot.sh`` is provided under ``sbin`` in the install
+folder. To boot on logical CPU 1 with 512MB of memory, use the following
+invocation:
+
+::
+
+   export TOP=${HOME}/ihk+mckernel/
+   cd ${TOP}
+   sudo ./sbin/mcreboot.sh -c 1 -m 512m
+
+You should see something similar like this if you display the McKernel’s
+kernel message log:
+
+.. code-block:: none
+
+   ./sbin/ihkosctl 0 kmsg
+
+   IHK/McKernel started.
+   [ -1]: no_execute_available: 1
+   [ -1]: map_fixed: phys: 0xfee00000 => 0xffff860000009000 (1 pages)
+   [ -1]: setup_x86 done.
+   [ -1]: ns_per_tsc: 385
+   [ -1]: KCommand Line: hidos    dump_level=24
+   [ -1]: Physical memory: 0x1ad3000 - 0x21000000, 525520896 bytes, 128301 pages available @ NUMA: 0
+   [ -1]: NUMA: 0, Linux NUMA: 0, type: 1, available bytes: 525520896, pages: 128301
+   [ -1]: NUMA 0 distances: 0 (10),
+   [ -1]: map_fixed: phys: 0x28000 => 0xffff86000000a000 (2 pages)
+   [ -1]: Trampoline area: 0x28000
+   [ -1]: map_fixed: phys: 0x0 => 0xffff86000000c000 (1 pages)
+   [ -1]: # of cpus : 1
+   [ -1]: locals = ffff880001af6000
+   [  0]: BSP: 0 (HW ID: 1 @ NUMA 0)
+   [  0]: BSP: booted 0 AP CPUs
+   [  0]: Master channel init acked.
+   [  0]: vdso is enabled
+   IHK/McKernel booted.
+
+Run a simple program on McKernel
+-----------------------------------
+
+The mcexec command line tool (which is also the Linux proxy process) can
+be used for executing applications on McKernel:
+
+::
+
+   ./bin/mcexec hostname
+   centos-vm
+
+Shutdown McKernel
+--------------------
+
+Finally, to shutdown McKernel and release CPU/memory resources back to
+Linux use the following command:
+
+::
+
+   sudo ./sbin/mcstop+release.sh