Update configuration.md

configuration.md

@@ -3,3 +3,12 @@ Yellow Tree Configuration
 
 # Lua setup
 * The `LUA_PATH` environment variable needs to include `/path/to/yellow-tree/?.lua`
+
+# Java setup
+* The `LD_LIBRARY_PATH` should include `/path/to/yellow-tree` (where `libyt.so` resides)
+* The Java command should include `-agentlib:yt` or `-agentlib:yt=options`
+
+# Options
+* `runfile` - A script can be passed to be run upon startup. It can be used for initialization, setting breakpoints, or as a complete debugger script.
+ * If `runfile` returns true, the debugger will immediately break to the command prompt after running the file.
+ * Alternatively, returning false will begin execution normally.