Fix typos in mkdir command (#1497)

Author: nurzhanzhanuzak

source/operations/deployments/baremetal-deploy-minio-on-macos.rst

@@ -112,7 +112,7 @@ Place the certificates in a dedicated directory:
 .. code-block:: shell
    :class: copyable
 
-   mkdir -P /opt/minio/certs
+   mkdir -p /opt/minio/certs
 
    cp private.key /opt/minio/certs
    cp public.crt /opt/minio/certs

source/operations/deployments/baremetal-deploy-minio-on-redhat-linux.rst

@@ -190,7 +190,7 @@ Place the certificates in a directory accessible by the ``minio-user`` user/grou
 .. code-block:: shell
    :class: copyable
 
-   mkdir -P /opt/minio/certs
+   mkdir -p /opt/minio/certs
    chown -R minio-user:minio-user /opt/minio/certs
 
    cp private.key /opt/minio/certs

source/operations/deployments/baremetal-deploy-minio-on-ubuntu-linux.rst

@@ -171,7 +171,7 @@ Place the certificates in a directory accessible by the ``minio-user`` user/grou
 .. code-block:: shell
    :class: copyable
 
-   mkdir -P /opt/minio/certs
+   mkdir -p /opt/minio/certs
    chown -R minio-user:minio-user /opt/minio/certs
 
    cp private.key /opt/minio/certs