diff --git a/51-php/intro.md b/51-php/intro.md
index 9ef2249..b1995e2 100644
--- a/51-php/intro.md
+++ b/51-php/intro.md
@@ -63,15 +63,15 @@ Paul wrote this letter because he wanted to do several things.
 1. Greeting, thanksgiving and prayer (1:1-11)
 1. Paul's report on his ministry (1:12-26)
 1. Instructions
-* To be steadfast (1:27-30)
-* To be united (2:1-2)
-* To be humble (2:3-11)
-* To work out our salvation, and God working in you (2:12-13)
-* To be innocent and light (2:14-18)
+    a. To be steadfast (1:27-30)
+    b. To be united (2:1-2)
+    c. To be humble (2:3-11)
+    d. To work out our salvation, and God working in you (2:12-13)
+    e. To be innocent and light (2:14-18)
 1. Timothy and Epaphroditus (2:19-30)
 1. Warning about false teachers (3:1-4:1)
 1. Personal instruction (4:2-5)
 1. Rejoice and do not be anxious (4:4-6)
 1. Final remarks
-* 1. Values (4:8-9)
-* 1. Contentment (4:10-20)
+    a. Values (4:8-9)
+    b. Contentment (4:10-20)