Merge branch 'update-docs-to-go-install' into 'main'

Update instructions to suggest go install rather than go build for building plugins

See merge request https://gitlab.com/gitlab-org/gitlab-runner/-/merge_requests/3819

Merged-by: Fiona Neill <[email protected]>
Approved-by: Joe Burnett <[email protected]>
Approved-by: Fiona Neill <[email protected]>
Co-authored-by: Davis Bickford <[email protected]>

Author: Fiona Neill

docs/development/index.md

@@ -189,8 +189,22 @@ The canonical build and configuration instructions will live with each plugin, b
 
 #### Build the plugin
 
-Each plugin can be built with `go build -o <plugin-name> ./cmd/`.
-The resulting binary should be placed somewhere on the local `$PATH`.
+To run GitLab Runner with a plugin, generate an executable binary and place it on your system's `PATH`.
+
+To generate the binary, ensure `$GOPATH/bin` is on your `PATH`, then use `go install`. 
+
+Each plugin contains a path to `./cmd/<plugin-name>`. For example, from the `fleeting-plugin-aws` directory:
+
+```shell
+cd cmd/fleeting-plugin-aws/ 
+go install 
+```
+
+If you manage go versions with asdf, run this command after the binary generates:
+
+```shell
+asdf reshim
+```
 
 #### Use the plugin