new: feat: add b3 lambda

README.md

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+# vercel-lambdas
+
+This is a collection of lambdas for personal use powered by [vercel](https://vercel.com/).
+
+## statusinvest
+
+The path `statusinvest` contains lambdas that fetches the status of a company (fundamentalist analysis) from [statusinvest.com](https://statusinvest.com/).
+
+## b3
+
+The path `b3` contains lambdas that fetches stock prices data directly from from [b3.com](https://b3.com/).
+
+- `b3/prices/:symbol` [Test it!](https://vercel-lambdas-felipemarinho.vercel.app/api/b3/prices/IBOV)
+    - Returns the stock prices for a given symbol.
+    - Example Response:
+    ```json
+    {
+        "symbol": "IBOV",
+        "name": "IBOVESPA",
+        "market": "Indices",
+        "openingPrice": 112295.87,
+        "minPrice": 111689.15,
+        "maxPrice": 113221.54,
+        "averagePrice": 112702.99,
+        "currentPrice": 112323.12,
+        "priceVariation": 0.02,
+        "indexComponentIndicator": false
+    }
+    ```