Add Makefile for jazzy target

Makefile

@@ -0,0 +1,5 @@
+all:
+	echo nothing defined by default
+
+jazzy:
+	jazzy --clean --author "Miguel de Icaza" --author_url https://tirania.org/ --github_url https://github.com/migueldeicaza/SwiftTerm --github-file-prefix https://github.com/migueldeicaza/SwiftTerm/tree/master --module-version 1.0 --module SwiftTerm --root-url https://migueldeicaza.github.io/SwiftTerm/ --output docs --build-tool-arguments -scheme,MacTerminal