Add session example and screenshot

examples/example.session.sh

@@ -0,0 +1,21 @@
+# Set custom session name. Default is based on filename.
+session_name "Example Session"
+
+# Set a custom session root. Default is `$HOME`.
+session_root "~/Documents"
+
+# Create session if it does not already exist.
+if initialize_session; then
+
+  # Example of loading an existing window layout.
+  load_window "example"
+
+  # Example of in-line window definition
+  window_name "In-line Window"
+  tmux new-window -t "$session" -n "$window"
+  tmux split-window -t "$session:$window.0" -v -p 50
+
+fi
+
+# Finalize session creation and switch/attach to it.
+finalize_and_go_to_session