Add link to how-to restore to a previously saved environment

Author: alfredbez

README.md

@@ -49,6 +49,7 @@ Optional:
 
 - [restoring vim and neovim sessions](docs/restoring_vim_and_neovim_sessions.md)
 - [restoring pane contents](docs/restoring_pane_contents.md)
+- [restoring a previously saved environment](docs/restoring_previously_saved_environment.md)
 
 Requirements / dependencies: `tmux 1.9` or higher, `bash`.
 

docs/restoring_previously_saved_environment.md

@@ -0,0 +1,13 @@
+# Restoring previously saved environment
+
+None of the previous saves are deleted (unless you explicitly do that). All save
+files are kept in `~/.tmux/resurrect/` directory.<br/>
+Here are the steps to restore to a previous point in time:
+
+- make sure you start this with a "fresh" tmux instance
+- `$ cd ~/.tmux/resurrect/`
+- locate the save file you'd like to use for restore (file names have a timestamp)
+- symlink the `last` file to the desired save file: `$ ln -sf <file_name> last`
+- do a restore with `tmux-resurrect` key: `prefix + Ctrl-r`
+
+You should now be restored to the time when `<file_name>` save happened.