Update notebooks (#2253)

* Add top-level notebook video (addresses #2090 )

* Add downsample video and fix typo (addresses #2089 )

* Add clarification about preview button

* Update content/influxdb/cloud/notebooks/create-notebook.md

Co-authored-by: Scott Anderson <sanderson@users.noreply.github.com>

* Update content/influxdb/cloud/notebooks/create-notebook.md

Co-authored-by: Russ Savage <russorat@users.noreply.github.com>

* Remove early access notes

Co-authored-by: Scott Anderson <sanderson@users.noreply.github.com>
Co-authored-by: Russ Savage <russorat@users.noreply.github.com>

content/influxdb/cloud/notebooks/_index.md

@@ -8,10 +8,6 @@ menu:
     name: Notebooks
 weight: 6
 ---
-{{% note %}}
-**Notebooks is currently an early-access feature.**
-[Submit a request](https://w2.influxdata.com/notebooks-early-access/) for early access, and we'll send you a confirmation notebooks is available in your account.
-{{% /note %}}
 
 Notebooks are a way to build and annotate processes and data flows for time series data. Using notebooks, you can:
 
@@ -21,6 +17,8 @@ Notebooks are a way to build and annotate processes and data flows for time seri
 - Build runbooks.
 - Document data processing steps.
 
+{{< youtube Rs16uhxK0h8 >}}
+
 To learn how to use notebooks, check out the following articles:
 
 {{< children >}}

content/influxdb/cloud/notebooks/clean-data.md

@@ -9,10 +9,6 @@ menu:
     name: Normalize data with notebooks
     parent: Notebooks
 ---
-{{% note %}}
-**Notebooks is currently an early-access feature.**
-[Submit a request](https://w2.influxdata.com/notebooks-early-access/) for early access, and we'll send you a confirmation notebooks is available in your account.
-{{% /note %}}
 
 Learn how to create a notebook that normalizes data. Walk through the following example to create a notebook that does the following:
 

content/influxdb/cloud/notebooks/create-notebook.md

@@ -9,10 +9,6 @@ menu:
     name: Create a notebook
     parent: Notebooks
 ---
-{{% note %}}
-**Notebooks is currently an early-access feature.**
-[Submit a request](https://w2.influxdata.com/notebooks-early-access/) for early access, and we'll send you a confirmation notebooks is available in your account.
-{{% /note %}}
 
 Create a notebook to explore, visualize, and process your data.
 
@@ -30,6 +26,9 @@ This guide walks through the basics of creating a notebook. For specific example
 4. By default, a **Metric Selector** and **Visualization** cell appear (see [Cell types](#cell-types) below for details.)
 5. Click the **+** icon to add a cell. See [Cell types](#cell-types) below for details on each type of cell.
 6. Click **Preview** to preview the results of each cell in a raw data table without writing any data.
+    {{% warn %}}
+If your cell contains a custom script that uses any output function to write data to InfluxDB (the `to()` function) or send it to a 3rd party service, clicking **Preview** will write data.
+    {{% /warn %}}
 7. Click the dropdown menu next to **Preview** and select **Run** to show the results of each cell and write it to the specified output bucket.
 7. Click the eye icon to hide a cell.
 

content/influxdb/cloud/notebooks/downsample.md

@@ -9,18 +9,16 @@ menu:
     name: Downsample data with notebooks
     parent: Notebooks
 ---
-{{% note %}}
-**Notebooks is currently an early-access feature.**
-[Submit a request](https://w2.influxdata.com/notebooks-early-access/) for early access, and we'll send you a confirmation notebooks is available in your account.
-{{% /note %}}
 
-Downsample data to reduce the overall disk usage as data collects over time. over time.
+Downsample data to reduce the overall disk usage as data collects over time.
 Learn how to create a notebook that downsamples data—walk through the following example to create a notebook that does the following:
 
 - Inputs InfluxDB Cloud demo data from the Website Monitoring Bucket
 - Downsamples data by aggregating data within windows of time with a Flux script
 - Outputs downsampled data to a bucket
 
+{{< youtube 0lS7n47kZog >}}
+
 ## Requirements
 
 - This example uses [InfluxDB Cloud demo data](/influxdb/cloud/reference/sample-data/#influxdb-cloud-demo-data).

content/influxdb/cloud/notebooks/manage-notebooks.md

@@ -8,10 +8,6 @@ menu:
     name: Manage notebooks
     parent: Notebooks
 ---
-{{% note %}}
-**Notebooks is currently an early-access feature.**
-[Submit a request](https://w2.influxdata.com/notebooks-early-access/) for early access, and we'll send you a confirmation notebooks is available in your account.
-{{% /note %}}
 
 View, update, and delete notebooks in the UI.
 

content/influxdb/cloud/notebooks/troubleshoot-notebooks.md

@@ -8,10 +8,6 @@ menu:
     name: Troubleshoot notebooks
     parent: Notebooks
 ---
-{{% note %}}
-**Notebooks is currently an early-access feature.**
-[Submit a request](https://w2.influxdata.com/notebooks-early-access/) for early access, and we'll send you a confirmation notebooks is available in your account.
-{{% /note %}}
 
 ### No measurements appear in my bucket even though there's data in it.
 Try changing the time range. You might have measurements prior to the time range you selected. For example, if the selected time range is `Past 1h` and the last write happened 16 hours ago, you'd need to change the time range to `Past 24h` (or more) to see your data.