Update readme.md

Author: javadev

src/main/java/g0201_0300/s0218_the_skyline_problem/readme.md

@@ -24,7 +24,11 @@ The **skyline** should be represented as a list of "key points" **sorted by thei
 
 **Output:** \[\[2,10\],\[3,15\],\[7,12\],\[12,0\],\[15,10\],\[20,8\],\[24,0\]\]
 
-**Explanation:** Figure A shows the buildings of the input. Figure B shows the skyline formed by those buildings. The red points in figure B represent the key points in the output list. 
+**Explanation:**
+
+    Figure A shows the buildings of the input.
+    Figure B shows the skyline formed by those buildings.
+    The red points in figure B represent the key points in the output list. 
 
 **Example 2:**
 
@@ -37,4 +41,4 @@ The **skyline** should be represented as a list of "key points" **sorted by thei
 *   <code>1 <= buildings.length <= 10<sup>4</sup></code>
 *   <code>0 <= left<sub>i</sub> < right<sub>i</sub> <= 2<sup>31</sup> - 1</code>
 *   <code>1 <= height<sub>i</sub> <= 2<sup>31</sup> - 1</code>
-*   `buildings` is sorted by <code>left<sub>i</sub></code> in non-decreasing order.
+*   `buildings` is sorted by <code>left<sub>i</sub></code> in non-decreasing order.