[documentation] Recommend users take latest *stable* release in insta…

…llation guides (#512)

* add note about release version number

* recommend users take latest stable release

docs/installation_guide/binary.md

@@ -22,16 +22,18 @@ cd /gotosocial
 
 Now, download the latest GoToSocial release archive corresponding to the operating system and architecture you're running on.
 
-For example, for version 0.1.0 running on 64-bit Linux:
+(You can find the list of releases [right here](https://github.com/superseriousbusiness/gotosocial/releases), arranged with the newest release at the top.)
+
+For example, to download version 0.3.1 for running on 64-bit Linux:
 
 ```bash
-wget https://github.com/superseriousbusiness/gotosocial/releases/download/v0.1.0/gotosocial_0.1.0_linux_amd64.tar.gz
+wget https://github.com/superseriousbusiness/gotosocial/releases/download/v0.3.1/gotosocial_0.3.1_linux_amd64.tar.gz
 ```
 
 Then extract it:
 
 ```bash
-tar -xzf gotosocial_0.1.0_linux_amd64.tar.gz
+tar -xzf gotosocial_0.3.1_linux_amd64.tar.gz
 ```
 
 This will put the `gotosocial` binary in your current directory, in addition to the `web` folder, which contains assets for the web frontend, and an `example` folder, which contains a sample configuration file.

docs/installation_guide/docker.md

@@ -60,7 +60,23 @@ nano docker-compose.yaml
 
 Now, you should change the `GTS_HOST` environment variable to the domain you are running GoToSocial on.
 
-If you want to use [LetsEncrypt](../configuration/letsencrypt.md) for ssl certificates (https), you should:
+You should also update the GoToSocial version number to use the latest stable release.
+
+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 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:
+
+```text
+image: superseriousbusiness/gotosocial:latest
+```
+
+with:
+
+```text
+image: superseriousbusiness/gotosocial:0.3.1
+```
+
+If you want to use [LetsEncrypt](../configuration/letsencrypt.md) for ssl certificates (https), you should also:
 
 1. Change the value of `GTS_LETSENCRYPT_ENABLED` to `"true"`.
 2. Remove the `#` before `- "80:80"` in the `ports` section.