examples/README.ytfeed: expand

examples/README.ytfeed

@@ -27,3 +27,18 @@ distributions come with Python 3 and it's one of few languages with XML parsing
 as part of the standard library - I figured it'd be less hassle than vendoring
 a dependency or (woe be unto those who think it) relying on whatever awful
 package managers the user has installed.
+
+ytfeed's API (use of stdin and argv) is not finalized and will likely change.
+
+At some point I'd like to refactor the project to be able to do something like
+```
+$ ytfeed.browse-feeds \
+	| menu \
+	| ytfeed.browse-feed \
+	| menu \
+	| ytfeed.browse-entry \
+	| menu
+```
+because I find long pipelines to be satisfying. Also, the Python programs would
+benefit from sharing code rather than duplicating it (just a few functions - I
+promise!).

examples/installation-helper

@@ -0,0 +1,37 @@
+#!./menu
+
+$ echo Hello, world.
+
+	echo Hello, world.
+
+$ cat Makefile
+
+	cat Makefile
+
+$ less <menu.rs
+
+	less <menu.rs
+
+Remove menu and re-build it.
+
+	rm -f menu; make
+
+Install menu to /usr/local/ (assuming adequate permissions).
+
+	make PREFIX=/usr/local/ install
+
+Install menu to /usr/local/ (using sudo(8)).
+
+	sudo make PREFIX=/usr/local install
+
+Uninstall menu from /usr/local (assuming adequate permissions).
+
+	make PREFIX=/usr/local/ uninstall
+
+Uninstall menu from /usr/local (using sudo(8)).
+
+	sudo make PREFIX=/usr/local/ uninstall
+
+Open the ytfeed launcher.
+
+	make -C examples -f Makefile.ytfeed