Merge pull request #108 from BrianLusina/feat/is-prefix-of-word

feat(strings, trie): is prefix of word

Author: BrianLusina

DIRECTORY.md

@@ -707,6 +707,8 @@
     * [Test Greatest Common Divisor](https://github.com/BrianLusina/PythonSnips/blob/master/pystrings/greatest_common_divisor/test_greatest_common_divisor.py)
   * Inttostr
     * [Test Int To Str](https://github.com/BrianLusina/PythonSnips/blob/master/pystrings/inttostr/test_int_to_str.py)
+  * Is Prefix
+    * [Test Is Prefix Of Word](https://github.com/BrianLusina/PythonSnips/blob/master/pystrings/is_prefix/test_is_prefix_of_word.py)
   * Is Unique
     * [Test Is Unique](https://github.com/BrianLusina/PythonSnips/blob/master/pystrings/is_unique/test_is_unique.py)
   * Issubsequence

algorithms/fast_and_slow/happy_number/README.md

@@ -15,26 +15,26 @@ Return TRUE if n is a happy number, and FALSE if not.
 
 ### Sample Example 1
 
-![Sample Example 1.1](example_1_1.png)
-![Sample Example 1.2](example_1_2.png)
-![Sample Example 1.3](example_1_3.png)
+![Sample Example 1.1](images/example/example_1_1.png)
+![Sample Example 1.2](images/example/example_1_2.png)
+![Sample Example 1.3](images/example/example_1_3.png)
 
 ### Sample Example 2
 
-![Sample Example 2.1](example_2_1.png)
-![Sample Example 2.2](example_2_2.png)
-![Sample Example 2.3](example_2_3.png)
+![Sample Example 2.1](images/example/example_2_1.png)
+![Sample Example 2.2](images/example/example_2_2.png)
+![Sample Example 2.3](images/example/example_2_3.png)
 
 ## Solution Example
 
 Below shows an example using Floyd's Cycle Detection Algorithm or Tortoise and Hare algorithm to detect a cycle
 for the number 2.
 
-![Solution Example 1](solution_example_1.png)
-![Solution Example 2](solution_example_2.png)
-![Solution Example 3](solution_example_3.png)
-![Solution Example 4](solution_example_4.png)
-![Solution Example 5](solution_example_5.png)
-![Solution Example 6](solution_example_6.png)
-![Solution Example 7](solution_example_7.png)
-![Solution Example 8](solution_example_8.png)
+![Solution Example 1](images/solution/solution_example_1.png)
+![Solution Example 2](images/solution/solution_example_2.png)
+![Solution Example 3](images/solution/solution_example_3.png)
+![Solution Example 4](images/solution/solution_example_4.png)
+![Solution Example 5](images/solution/solution_example_5.png)
+![Solution Example 6](images/solution/solution_example_6.png)
+![Solution Example 7](images/solution/solution_example_7.png)
+![Solution Example 8](images/solution/solution_example_8.png)