修正地址错误

src/SUMMARY.md

@@ -1,9 +1,9 @@
 # Summary
 * [首页](homepage.md)
 * [皈依与持戒](./chapter_2/README.md)
-  * [皈依](./chapter_2/sarana.md)
+  * [皈依](./chapter_2/sarana1.md)
     * [什么是三皈依](./chapter_2/tisarana.md)
-    * [皈依对象](./chapter_2/sarana.md)
+    * [皈依对象](./chapter_2/sarana2.md)
       * [什么是佛](./chapter_2/buddha.md)
       * [什么是法](./chapter_2/dhamma.md)
     * [行三皈依](./chapter_2/saranagamana.md)

src/chapter_2/sarana1.md

@@ -0,0 +1 @@
+# 皈依

src/chapter_2/sarana2.md

@@ -0,0 +1 @@
+# 皈依对象