doc/start: edit os-recommendations.rst

Improve the grammar in one sentence of the "Platforms" section of
doc/start/os-recommendations.rst. Improving that grammar involved
splitting the sentence into two sentences, but that's life. Update:
Anthony substantially rewrote this, so credit for this should rightly
go to him.

Co-authored-by: Anthony D'Atri <anthony.datri@gmail.com>
Signed-off-by: Zac Dover <zac.dover@proton.me>
(cherry picked from commit e19b9cea62c56cbd73049957d69d5aac16a97c08)

diff --git a/doc/start/os-recommendations.rst b/doc/start/os-recommendations.rst
index 98cef7820fd5a610bfc6790846a1c1e21d3d0c3e..4162ed1d610825775d5ea819497b006da696b3e6 100644 (file)
--- a/doc/start/os-recommendations.rst
+++ b/doc/start/os-recommendations.rst
@@ -54,6 +54,11 @@ package (i.e., sysvinit, systemd).
 - **B**: Ceph provides packages and has done basic tests on the software in them.
 - **C**: Ceph provides packages only. No tests have been done on these releases.
 
+Ceph does not require a specific Linux distribution. Ceph can run on any
+distribution that includes a supported kernel and supported system startup
+framework, for example ``sysvinit`` or ``systemd``. Ceph is sometimes ported to
+non-Linux systems but these are not supported by the core Ceph effort.
+
 .. note::
    **For Centos 7 Users**