chore: update references to version in README.md

Author: claymcleod

README.md

@@ -71,7 +71,7 @@ cargo install sprocket
 Sprocket is available as a Docker [image](https://github.com/stjude-rust-labs/sprocket/pkgs/container/sprocket).
 
 ```bash
-docker pull ghcr.io/stjude-rust-labs/sprocket:v0.11.0
+docker pull ghcr.io/stjude-rust-labs/sprocket:v0.12.0
 ```
 
 ## 🖥️ Development

RELEASE.md

@@ -5,6 +5,7 @@ Open a new PR with the title `release: bump versions` with the following changes
 * [ ] Update version in `Cargo.toml`.
 * [ ] Run `cargo update`.
 * [ ] Update `CHANGELOG.md` with version and publication date.
+* [ ] Update any references in the `README.md` to the new version.
 * [ ] Update the [docs site](https://stjude-rust-labs.github.io/sprocket/) to the new version ([here](https://github.com/stjude-rust-labs/sprocket/blob/main/docs/.vitepress/config.mts#L17))
 
 Once the above PR merges: