diff --git a/lectures/01_introduction/README.md b/lectures/01_introduction/README.md
index 6182fb5..0eb86d8 100644
--- a/lectures/01_introduction/README.md
+++ b/lectures/01_introduction/README.md
@@ -274,7 +274,7 @@ object. There are several ways of constructing string objects:
   3. Reading stops either at the end of the input or upon reaching the next white-space character (without reading it in).
 - The (overloaded) operator ’+’ is defined on strings. It concatenates two strings to create a third string, without changing either of the original two strings.
 - The assignment operation ’=’ on strings overwrites the current contents of the string.
-- The individual characters of a string can be accessed using the subscript operator [] (similar to arrays).
+- The individual characters of a string can be accessed using the subscript operator [] (similar to arrays).  
   – Subscript 0 corresponds to the first character.  
   – For example, given std::string a = "Susan"; Then a[0] == 'S' and a[1] == 'u' and a[4] == 'n'.
 - Strings define a special type string::size_type, which is the type returned by the string function size()