fixed a path issue

liuxinyu95 · liuxinyu95 · commit f035b6d7dacf · 2017-12-10T20:36:23.000+08:00
diff --git a/main-en.tex b/main-en.tex
@@ -110,7 +110,7 @@ \part{Appendix}
 
 \subimport{others/appendix/rbt-del/}{rbt-del-en.tex}
 
-\subimport{others/appendix/avltree}{avl-proof-en.tex}
+\subimport{others/appendix/avltree/}{avl-proof-en.tex}
 
 \input{fdl-1.3.tex}
 
