guile: add page (#2487)

pages/common/guile.md

@@ -0,0 +1,19 @@
+# guile
+
+> Guile Scheme interpreter.
+
+- Start the Guile Scheme REPL:
+
+`guile`
+
+- Execute the script in a given Scheme file:
+
+`guile {{script.scm}}`
+
+- Execute a Scheme expression:
+
+`guile -c "{{expression}}"`
+
+- Listen on a port or a Unix domain socket (the default is port 37146) for remote REPL connections:
+
+`guile --listen={{port_or_socket}}`