M README.md → README.md

@@ -7,6 +7,28 @@
 note that these packages usually aren't thoroughly tested, so use them at your
 own risk.
 
+## available packages
+
+* media-libs/lsp-plugins-1.2.2
+* media-sound/carla-2.4.3
+* media-sound/drumgizmo-0.9.19
+* net-im/gajim-1.4.5
+* net-print/epson-inkjet-printer-1.0.0 (for epson L110, L210, L300, L350, L355, L550, L555 series)
+
+## installing
+
+use `app-portage/eselect-repository` to add this overlay
+(see [gentoo wiki page for eselect/repository][1]).
+then sync it using `emaint` (see [gentoo wiki page about syncing repos][2]).
+
+```
+# eselect repository add la-ninpre git https://git.aaoth.xyz/la-ninpre-overlay.git
+# emaint sync -r la-ninpre
+```
+
+[1]:https://wiki.gentoo.org/wiki/Eselect/Repository
+[2]:https://wiki.gentoo.org/wiki/Ebuild_repository#Repository_synchronization
+
 ## contributing
 
 [contact me](https://aaoth.xyz/about.html#contact).