Add compose key sequences for French IPA

dots/.XCompose

@@ -15,4 +15,9 @@ include "%L"
 <Multi_key> <backslash> <u>              	: "ʉ"   U0289 
 <Multi_key> <apostrophe> <bracketright>              	: "ˈ"   U02c8 
 <Multi_key> <colon> <colon>              	: "ː"   U02d0 
-<Multi_key> <g> <h>              	: "ʒ"   U0292 
+<Multi_key> <g> <h>              	: "ʒ"   U0292
+<Multi_key> <g> <n>			: "ɲ" U0272
+<Multi_key> <R> <backslash>		: "ʁ" U0281
+<Multi_key> <R> <R>			: "ʀ" U0280
+<Multi_key> <h> <backslash>		: "ɥ" U0265
+<Multi_key> <a> <o>			: "ɑ" U0251