Section headings

Author: bowbahdoe

src/boolean.md

@@ -1,5 +1,7 @@
 # Booleans
 
+<img src="/boolean/header.png" height="200px"/>
+
 A `boolean` is either `true` or `false`.
 
 ```java,no_run

src/boolean/header.png

@@ -1,5 +1,7 @@
 # Characters
 
+<img src="/characters/header.png" height="200px"/>
+
 A character, represented by the data type `char`, is a single
 letter or symbol.
 

src/characters.md

@@ -1,5 +1,8 @@
 # Floating Point Numbers
 
+
+<img src="/floating_point_numbers/header.png" height="200px"/>
+
 Floating point numbers are used to represent numbers
 which cannot be stored as Integers like `2.5` or `3.14`.
 

src/characters/header.png

@@ -1,9 +1,13 @@
 # Integers
 
+
+<img src="/integers/header.png" height="200px"/>
+
 [An integer is any number in the set `{ ..., -2, -1, 0, 1, 2, ... }.`](https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-expressions-and-variables/whole-numbers-integers/a/whole-numbers-integers)
 
 ```java
 int x = 1;
 int y = 8;
 int z = -4;
 ```
+