README: repositories on another machine

README.md

@@ -41,6 +41,14 @@
   In every layout, the words that changed inside a line are marked.
 - **Opens other repositories** from a list of recent ones, or from a folder picker
   (<kbd>o</kbd>).
+- **Opens repositories on another machine.** Write the place as `[user@]host:path`, for
+  example `gites myserver:/srv/app`, or choose **Open on another machine…** in the
+  repository menu (<kbd>o</kbd>) or on the welcome screen. `host` can be any host name
+  from your `~/.ssh/config`; that file is also where a port other than 22 goes. gites
+  runs git on that machine through ssh, so git must be installed there. It logs in with
+  your ssh keys or the ssh agent and never asks for a password, so a login that needs a
+  password does not work. You see the history of the repository on that machine: its own
+  branches and its checked-out branch, as for a repository on this computer.
 - **Stays current.** gites reloads the repository when its window gets focus again.
 
 ![The diff of one file, with old and new side by side and the changed words marked](docs/screenshots/diff.png)
@@ -64,6 +72,7 @@ gites runs the `git` command, so git must be installed and on your `PATH`.
 ```sh
 gites                     # the repository in the current folder
 gites ~/code/my-project   # another repository
+gites myserver:/srv/app   # a repository on another machine, over ssh
 ```
 
 ## Keys