More work on tentacles.

README.md

@@ -29,8 +29,8 @@ and caches it under `${XDG_CACHE_HOME:-$HOME/.cache}/cthulhu/toolchains`.
 It does not replace system Go or require root.
 
 Install a C compiler, `pkg-config`, and the development libraries for GTK3,
-AT-SPI, GLib/GIO, GStreamer, X11, XTest, XFixes, XRes, xkbcommon, liblouis,
-and BRLTTY/BrlAPI first. The script checks the pkg-config dependencies;
+AT-SPI, GLib/GIO, GStreamer, X11, XTest, libXi, XFixes, XRes, xkbcommon,
+liblouis, and BRLTTY/BrlAPI first. The script checks the pkg-config dependencies;
 BrlAPI headers and its library are checked by the compiler during the build.
 Bootstrapping Go additionally needs `curl`, `tar`, and `sha256sum`.
 See [Contributing](CONTRIBUTING.md#development-and-architecture) and the