doc/install: refine index.rst

Refine English sentences in doc/install/index.rst. Remove adverbial
phrases of time that refer to Nautilus-era features as "new", since that
was four years ago.

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

doc/install/index.rst

@@ -4,34 +4,33 @@
 Installing Ceph
 ===============
 
-There are several different ways to install Ceph.  Choose the
-method that best suits your needs.
+There are multiple ways to install Ceph.  Choose the method that best suits
+your needs.
 
 Recommended methods
 ~~~~~~~~~~~~~~~~~~~
 
 :ref:`Cephadm <cephadm_deploying_new_cluster>` installs and manages a Ceph
-cluster using containers and systemd, with tight integration with the CLI and
-dashboard GUI.
-
-* cephadm only supports Octopus and newer releases.
-* cephadm is fully integrated with the new orchestration API and
-  fully supports the new CLI and dashboard features to manage
-  cluster deployment.
-* cephadm requires container support (podman or docker) and
+cluster that uses containers and systemd and is tightly integrated with the CLI
+and dashboard GUI.
+
+* cephadm supports only Octopus and newer releases.
+* cephadm is fully integrated with the orchestration API and fully supports the
+  CLI and dashboard features that are used to manage cluster deployment.
+* cephadm requires container support (in the form of Podman or Docker) and
   Python 3.
 
 `Rook <https://rook.io/>`_ deploys and manages Ceph clusters running
 in Kubernetes, while also enabling management of storage resources and
-provisioning via Kubernetes APIs.  We recommend Rook as the way to run Ceph in
+provisioning via Kubernetes APIs. We recommend Rook as the way to run Ceph in
 Kubernetes or to connect an existing Ceph storage cluster to Kubernetes.
 
-* Rook only supports Nautilus and newer releases of Ceph.
+* Rook supports only Nautilus and newer releases of Ceph.
 * Rook is the preferred method for running Ceph on Kubernetes, or for
   connecting a Kubernetes cluster to an existing (external) Ceph
   cluster.
-* Rook supports the new orchestrator API. New management features
-  in the CLI and dashboard are fully supported.
+* Rook supports the orchestrator API. Management features in the CLI and
+  dashboard are fully supported.
 
 Other methods
 ~~~~~~~~~~~~~
@@ -40,16 +39,20 @@ Other methods
 Ceph clusters using Ansible.
 
 * ceph-ansible is widely deployed.
-* ceph-ansible is not integrated with the new orchestrator APIs,
-  introduced in Nautilus and Octopus, which means that newer
-  management features and dashboard integration are not available.
+* ceph-ansible is not integrated with the orchestrator APIs that were
+  introduced in Nautilus and Octopus, which means that the management features
+  and dashboard integration introduced in Nautilus and Octopus are not
+  available in Ceph clusters deployed by means of ceph-ansible.
 
 
-`ceph-deploy <https://docs.ceph.com/projects/ceph-deploy/en/latest/>`_ is a tool for quickly deploying clusters.
+`ceph-deploy <https://docs.ceph.com/projects/ceph-deploy/en/latest/>`_ is a
+tool that can be used to quickly deploy clusters. It is deprecated.
 
   .. IMPORTANT::
 
-   ceph-deploy is no longer actively maintained. It is not tested on versions of Ceph newer than Nautilus. It does not support RHEL8, CentOS 8, or newer operating systems.
+   ceph-deploy is not actively maintained. It is not tested on versions of Ceph
+   newer than Nautilus. It does not support RHEL8, CentOS 8, or newer operating
+   systems.
 
 `ceph-salt <https://github.com/ceph/ceph-salt>`_ installs Ceph using Salt and cephadm.
 
@@ -68,7 +71,7 @@ Ceph can also be :ref:`installed manually <install-manual>`.
 Windows
 ~~~~~~~
 
-For Windows installations, please consult this document:
+For Windows installations, consult this document:
 `Windows installation guide`_.
 
 .. _Windows installation guide: ./windows-install