DOCSP-46406 ca typo fix (#657)

Author: kyuan-mongodb

snooty.toml

@@ -117,6 +117,7 @@ bic-short = ":bic:`BI Connector </>`"
 bic-short-no-link = "BI Connector"
 bson = ":abbr:`BSON (Binary Javascript Object Notation)`"
 certauth = "Certificate Authority"
+certauth-plural = "Certificate Authorities"
 cidr = ":abbr:`CIDR (Classless Inter-Domain Routing)`"
 cifs = ":abbr:`CIFS (Common Internet File System)`"
 cloud = "MongoDB Cloud Manager"

source/includes/agents/backup-settings-cloud.rst

@@ -214,10 +214,10 @@ Specify the settings {+bagent+} use when communicating with |mms| using
    verify that the {+mdbagent+} can communicate with the designated
    |mms| instance.
 
-   *By default, {+bagent+} uses the trusted root* |certauth|\s
+   *By default, {+bagent+} uses the trusted root* |certauth-plural|
    *installed on the system.*
 
-   If {+bagent+} cannot find the trusted root |certauth|\s, configure
+   If {+bagent+} cannot find the trusted root |certauth-plural|, configure
    these settings manually.
 
    If |mms| use a self-signed |tls| certificate, provide a value for

source/includes/agents/backup-settings-onprem.rst

@@ -213,10 +213,10 @@ Specify the settings {+bagent+} use when communicating with |mms| using
    verify that the {+mdbagent+} can communicate with the designated
    |mms| instance.
 
-   *By default, {+bagent+} uses the trusted root* |certauth|\s
+   *By default, {+bagent+} uses the trusted root* |certauth-plural|
    *installed on the system.*
 
-   If {+bagent+} cannot find the trusted root |certauth|\s, configure
+   If {+bagent+} cannot find the trusted root |certauth-plural|, configure
    these settings manually.
 
    If |mms| use a self-signed |tls| certificate, provide a value for

source/includes/agents/monitoring-settings-cloud.rst

@@ -207,10 +207,10 @@ using |tls|.
    verify that the agent can communicate with the designated |mms|
    instance.
 
-   *By default, {+magent+} uses the trusted root* |certauth|\s
+   *By default, {+magent+} uses the trusted root* |certauth-plural|
    *installed on the host.*
 
-   If the agent cannot find the trusted root |certauth|\s, configure
+   If the agent cannot find the trusted root |certauth-plural|, configure
    these settings manually.
 
    .. code-block:: ini

source/includes/agents/monitoring-settings-onprem.rst

@@ -211,10 +211,10 @@ Specify the settings {+magent+} use when communicating with |mms| using
    verify that the agent can communicate with the designated |mms|
    instance.
 
-   *By default, {+magent+} uses the trusted root* |certauth|\s
+   *By default, {+magent+} uses the trusted root* |certauth-plural|
    *installed on the host.*
 
-   If the agent cannot find the trusted root |certauth|\s, configure
+   If the agent cannot find the trusted root |certauth-plural|, configure
    these settings manually.
 
    If the |mms| instance uses a self-signed |tls| certificate, you