install: add note about restarting Linux terminal after installation

public/static/docs/install/linux.md

@@ -16,6 +16,9 @@ Depending on the type of the [remote storage](/doc/command-reference/remote) you
 plan to use, you might need to install optional dependencies: `[s3]`, `[azure]`,
 `[gdrive]`, `[gs]`, `[oss]`, `[ssh]`. Use `[all]` to include them all.
 
+> Please restart your terminal if you get a `Command 'dvc' not found` error when
+> trying to use `dvc` after installation.
+
 <details>
 
 ### Example: How to install DVC with support for Amazon S3 storage