diff --git a/vectors.Rmd b/vectors.Rmd
index 1fe5b60..f7baedd 100644
--- a/vectors.Rmd
+++ b/vectors.Rmd
@@ -82,10 +82,10 @@ typeof(1L)
 
 The distinction between integers and doubles is not usually important, but there are two important differences that you should be aware of:
 
-1.   Doubles are approximations. Doubles represent floating point numbers that 
-     can not always be precisely represented with a fixed amount of memory. 
-     This means that you should consider all doubles to be approximations. 
-     For example, what is square of the square root of two?
+1.  Doubles are approximations. Doubles represent floating point numbers that 
+    can not always be precisely represented with a fixed amount of memory. 
+    This means that you should consider all doubles to be approximations. 
+    For example, what is square of the square root of two?
 
     ```{r}
     x <- sqrt(2) ^ 2