Add instructions for testing

Signed-off-by: Masanori Ogino <mogino@acm.org>

README.md

@@ -8,6 +8,27 @@ SJ3 is a kana-kanji conversion system for Japanese text input.
 
 Unless otherwise noted, SJ3 is released under the MIT License.
 
+## Installation
+
+NB: Ugly hacks here and there...
+
+```
+cmake -B build -DCMAKE_C_FLAGS="-w"
+cmake --build build
+./build/sj3mkdic dict/visual.dic dict/sj3main.dic > /dev/null
+sudo cp ./build/sj3serv /usr/local/bin/
+sudo mkdir -p /usr/local/share/sj3/dict
+sudo cp ./dict/sj3main.dic /usr/local/share/sj3/dict/
+sudo mkdir -p /usr/local/lib/sj3
+sudo cp ./server/serverrc /usr/local/lib/sj3/
+sudo uim-module-manager --register sj3
+uim-pref-gtk3
+# Enable SJ3
+# Modify socket path to /tmp/sj3sock
+# Press OK
+# Restart X session
+```
+
 ## Acknowledgments
 
 We highly appreciate the release of SJ3 source code as a free and open source