Merge pull request #945 from ByamB4/patch-1

[rop/section] Updated small typo

binary-exploitation/rop-return-oriented-programing/ret2csu.md

@@ -52,7 +52,7 @@ mov edi, r13d;
 call qword [r12 + rbx*8];
 ```
 
-2. Maybe you don't know any address to write there and you **need a `ret` instruction**. Note that the second gadget will also **end in a `ret`**, but you will need to meet some **conditions** in order to reach it:
+3. Maybe you don't know any address to write there and you **need a `ret` instruction**. Note that the second gadget will also **end in a `ret`**, but you will need to meet some **conditions** in order to reach it:
 
 ```armasm
 mov rdx, r15;