[docs] Update guide/assets imgs

docs/docs-beta/docs/guides/build/assets/asset-selection-syntax.md

@@ -34,7 +34,7 @@ A query includes a list of clauses. Clauses are separated by commas, except in t
 
 The examples in this section use the following asset graph from the [Dagster University Essentials project](https://github.com/dagster-io/project-dagster-university) to demonstrate how to use the selection syntax:
 
-![Screenshot of Daggy U project graph](/img/placeholder.svg)
+![Screenshot of Daggy U project graph](/images/guides/build/assets/asset-selection-syntax/asset-selection-syntax-dag.png)
 
 ### Selecting a single asset \{#single-asset}
 
@@ -64,7 +64,7 @@ taxi_zones_file
 
 Which would result in the following asset graph:
 
-![Screenshot of Daggy U project graph](/img/placeholder.svg)
+![Screenshot of Daggy U project graph](/images/guides/build/assets/asset-selection-syntax/select-single-asset.png)
 
 </TabItem>
 </Tabs>
@@ -109,7 +109,7 @@ manhattan/manhattan_stats
 
 Which would result in the following asset graph:
 
-![Screenshot of Daggy U project graph](/img/placeholder.svg)
+![Screenshot of Daggy U project graph](/images/guides/build/assets/asset-selection-syntax/select-multiple-components.png)
 
 </TabItem>
 </Tabs>
@@ -150,7 +150,7 @@ taxi_zones_file taxi_trips_file
 
 Which would result in the following asset graph:
 
-![Screenshot of Daggy U project graph](/img/placeholder.svg)
+![Screenshot of Daggy U project graph](/images/guides/build/assets/asset-selection-syntax/select-disjointed-lineages.png)
 
 </TabItem>
 </Tabs>
@@ -189,7 +189,7 @@ dagster asset materialize --select "*taxi_zones*"
 
 Which would result in the following asset graph:
 
-![Screenshot of Daggy U project graph](/img/placeholder.svg)
+![Screenshot of Daggy U project graph](/images/guides/build/assets/asset-selection-syntax/select-entire-lineage.png)
 
 </TabItem>
 </Tabs>
@@ -230,7 +230,7 @@ dagster asset materialize --select "*manhattan_map"
 
 Which would result in the following asset graph:
 
-![Screenshot of Daggy U project graph](/img/placeholder.svg)
+![Screenshot of Daggy U project graph](/images/guides/build/assets/asset-selection-syntax/select-upstream-dependencies.png)
 
 </TabItem>
 </Tabs>
@@ -267,7 +267,7 @@ dagster asset materialize --select "++manhattan_map"
 
 Which would result in the following asset graph:
 
-![Screenshot of Daggy U project graph](/img/placeholder.svg)
+![Screenshot of Daggy U project graph](/images/guides/build/assets/asset-selection-syntax/select-two-upstream-layers.png)
 
 </TabItem>
 </Tabs>
@@ -308,7 +308,7 @@ taxi_zones_file*
 
 Which would result in the following asset graph:
 
-![Screenshot of Daggy U project graph](/img/placeholder.svg)
+![Screenshot of Daggy U project graph](/images/guides/build/assets/asset-selection-syntax/select-downstream-dependencies.png)
 
 </TabItem>
 </Tabs>
@@ -345,7 +345,7 @@ taxi_zones_file++
 
 Which would result in the following asset graph:
 
-![Screenshot of Daggy U project graph](/img/placeholder.svg)
+![Screenshot of Daggy U project graph](/images/guides/build/assets/asset-selection-syntax/select-two-downstream-layers.png)
 
 </TabItem>
 </Tabs>

docs/docs-beta/docs/guides/build/assets/configuring-assets.md

@@ -32,11 +32,11 @@ When launching a run using the Launchpad in the UI, you can provide a run config
 
 On any page with a **Materialize** button, click the **options menu > Open launchpad** to access the Launchpad:
 
-![Highlighted Open Launchpad option in the Materialize options menu of the Dagster UI](/img/placeholder.svg)
+![Highlighted Open Launchpad option in the Materialize options menu of the Dagster UI](/images/guides/build/assets/configuring-assets-in-the-ui/open-launchpad.png)
 
 This will open the Launchpad, where you can scaffold the config, customize its values, and manually materialize the asset:
 
-![Dagster Launchpad that configures an asset to have a lookback window of 7 days](/img/placeholder.svg)
+![Dagster Launchpad that configures an asset to have a lookback window of 7 days](/images/guides/build/assets/configuring-assets-in-the-ui/look-back-7.png)
 
 ## Next steps
 

docs/docs-beta/docs/guides/build/external-pipelines/javascript-pipeline.md

@@ -10,16 +10,20 @@ This guide covers how to run JavaScript with Dagster using Pipes, however, the s
 
 To follow this guide, you'll need:
 
-- Familiarity with [Assets](/guides/build/assets/index.mdx
+- Familiarity with [Assets](/guides/build/assets/)
 - A basic understanding of JavaScript and Node.js
 
 To run the examples, you'll need to install:
 
 - [Node.js](https://nodejs.org/en/download/package-manager/)
-- The following packages:
+- The following Python packages:
 
    ```bash
-   pip install dagster dagster-webserver tensorflow
+   pip install dagster dagster-webserver
+   ```
+- The following Node packages:
+   ```bash
+   npm install @tensorflow/tfjs
    ```
 </details>
 
@@ -42,8 +46,6 @@ In Dagster, create an asset that:
 
 When the asset is materialized, the stdout and stderr will be captured automatically and shown in the asset logs. If the command passed to Pipes returns a successful exit code, Dagster will produce an asset materialization result.
 
-![Image of captured stdout](/img/placeholder.svg)
-
 ## Step 3: Send and receive data from the script
 
 To send context to your script or emit events back to Dagster, you can use environment variables provided by the `PipesSubprocessClient`.