By Bret Kenwell Buy or sell the post-earnings strength in Tesla? Let’s look at what the chart says. Shares of Tesla (TSLA) – Get Tesla Inc Report were electrified this morning, ripping higher and climbing 11.7% at Thursday highs. Acting as the catalyst was the company’s better-than-expected earnings report. Tesla topped both earnings and revenue expectations. It continues to deliver upbeat margin results and impressive metrics even in the face of its many doubters. At last check though, shares are up just 5.5% as the stock hit a key level on the chart. What it does from here is important. Not …