doc/glossary: s/an/each/ where it's needed

s/an/each/ in accordance with the suggestion made by Anthony D'Atri
here: https://github.com/ceph/ceph/pull/49590/files#r1058390357

Signed-off-by: Zac Dover <zac.dover@gmail.com>

diff --git a/doc/glossary.rst b/doc/glossary.rst
index ca514a636aab59d6c7d2c97d3529d310d8b8c108..3e49bc661a0f93b7c3d9234f28927945a740c7ea 100644 (file)
--- a/doc/glossary.rst
+++ b/doc/glossary.rst
@@ -276,7 +276,7 @@
 
        OSD id
                 The integer that defines an OSD. It is generated by the
-                monitors during the creation of an OSD.
+                monitors during the creation of each OSD.
 
        OSD uuid
                 This is the unique identifier of an OSD. This term is used