[docs] Update docker.md with docker tag / version stuff (#1067)

1 files changed, 7 insertions, 3 deletions

diff --git a/docs/installation_guide/docker.md b/docs/installation_guide/docker.md
index 0cb9390ac..4a59d7d25 100644
--- a/docs/installation_guide/docker.md
+++ b/docs/installation_guide/docker.md
@@ -60,11 +60,15 @@ nano docker-compose.yaml
 
 #### Version
 
-First, you should update the GoToSocial version number to the latest stable release.
+If desired, update the GoToSocial Docker image tag to the version of GtS you want to use.
 
-The list of releases can be found [right here](https://github.com/superseriousbusiness/gotosocial/releases), with the newest release at the top.
+`latest`   - the default. This points to the latest stable release of GoToSocial.
 
-Replace `latest` in the docker-compose.yaml with the number of the release (without the leading `v` or trailing version name). So for example if you want to run [v0.3.1 Sleepy Sloth](https://github.com/superseriousbusiness/gotosocial/releases/tag/v0.3.1) you should replace:
+`snapshot` - points to whatever code is currently on the main branch. Not guaranteed to be stable, will often be broken. Use with caution.
+
+You can also replace `latest` with a specific GoToSocial version number. This is recommended when you want to make sure that you don't update your GoToSocial version by accident, which can cause problems.
+
+The list of releases can be found [right here](https://github.com/superseriousbusiness/gotosocial/releases), with the newest release at the top. Replace `latest` in the docker-compose.yaml with the number of the desired release (without the leading `v` or trailing version name). So for example if you want to run [v0.3.1 Sleepy Sloth](https://github.com/superseriousbusiness/gotosocial/releases/tag/v0.3.1) for whatever reason, you should replace:
 
 ```text
 image: superseriousbusiness/gotosocial:latest