Creating a template for jeremymanning's solution to problem 703

Author: jeremymanning

problems/703/jeremymanning.md

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+# [Problem 703: Kth Largest Element in a Stream](https://leetcode.com/problems/kth-largest-element-in-a-stream/description/?envType=daily-question)
+
+## Initial thoughts (stream-of-consciousness)
+
+## Refining the problem, round 2 thoughts
+
+## Attempted solution(s)
+```python
+class Solution:  # paste your code here!
+    ...
+```