Fix chart studio link in `st.plotly_chart` docstring
diff --git a/lib/streamlit/elements/plotly_chart.py b/lib/streamlit/elements/plotly_chart.py
index b6056484ba50..b7efbbdfd71b 100644
--- a/lib/streamlit/elements/plotly_chart.py
+++ b/lib/streamlit/elements/plotly_chart.py
@@ -95,7 +95,7 @@ def plotly_chart(
             Use 'streamlit' to insert the plot and all its dependencies
             directly in the Streamlit app using plotly's offline mode (default).
             Use any other sharing mode to send the chart to Plotly chart studio, which
-            requires an account. See https://plotly.com/chart-studio/ for more information.
+            requires an account. See https://plot.ly/python/chart-studio/ for more information.
 
         **kwargs
             Any argument accepted by Plotly's `plot()` function.

## 📚 Context

The `st.plotly_chart` docstring contains a [dead link](https://plotly.com/chart-studio/) to Plotly Chart Studio.

- What kind of change does this PR introduce?

  - [x] Other, please describe: Doc improvement request

## 🧠 Description of Changes

- Replaces the dead link in the plotly chart docstring with https://plot.ly/python/chart-studio/

  - [x] This is a visible (user-facing) change

**Revised:**

![image](https://user-images.githubusercontent.com/20672874/180374786-7640f7fc-0e71-4822-8817-29be2388fe2f.png)

**Current:**

![image](https://user-images.githubusercontent.com/20672874/180374815-8dd17d62-fd71-44eb-9ee5-bd57b59c8e07.png)

## 🧪 Testing Done

- [x] Screenshots included
---

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