chore: fix rocks terminology (#31)

README.md

@@ -1,10 +1,10 @@
-# Charmed PostgreSQL ROCK
+# Charmed PostgreSQL rock
 [![Release to GHCR](https://github.com/canonical/charmed-postgresql-rock/actions/workflows/release.yaml/badge.svg)](https://github.com/canonical/charmed-postgresql-rock/actions/workflows/release.yaml)
 
-This repository contains the packaging metadata for creating a ROCK of PostgreSQL built from the official Ubuntu repositories.  For more information on ROCKs, visit the [rockcraft Github](https://github.com/canonical/rockcraft). 
+This repository contains the packaging metadata for creating a rock of PostgreSQL built from the official Ubuntu repositories.  For more information on rocks, visit the [rockcraft Github](https://github.com/canonical/rockcraft). 
 
-## Building the ROCK
-The steps outlined below are based on the assumption that you are building the ROCK with the latest LTS of Ubuntu.  If you are using another version of Ubuntu or another operating system, the process may be different.
+## Building the rock
+The steps outlined below are based on the assumption that you are building the rock with the latest LTS of Ubuntu.  If you are using another version of Ubuntu or another operating system, the process may be different.
 
 ### Clone Repository
 ```bash
@@ -24,15 +24,15 @@ sudo usermod -aG docker $USER
 sudo lxd init --auto
 ```
 *_NOTE:_* You will need to open a new shell for the group change to take effect (i.e. `su - $USER`)
-### Packing and Running the ROCK
+### Packing and Running the rock
 ```bash
 rockcraft pack
 sudo skopeo --insecure-policy copy oci-archive:charmed-postgresql*.rock docker-daemon:<username>/charmed-postgresql:<tag>
 docker run --rm -it <username>/charmed-postgresql:<tag>
 ```
 
 ## License
-The PostgreSQL ROCK is free software, distributed under the Apache
+The PostgreSQL rock is free software, distributed under the Apache
 Software License, version 2.0. See
 [LICENSE](https://github.com/canonical/charmed-postgresql-rock/blob/14-22.04/licenses/LICENSE-rock)
 for more information.

rockcraft.yaml

@@ -1,9 +1,9 @@
 name: charmed-postgresql
 base: [email protected]
 version: '14.11'
-summary: PostgreSQL in a ROCK.
+summary: PostgreSQL in a rock.
 description: |
-    The PostgreSQL ROCK is created using the
+    The PostgreSQL rock is created using the
     charmed-postgresql-snap and includes all of the
     components needed to run PostgreSQL in your Kubernetes
     cluster.