docs: include references about how to reindex datasets in hf spaces (#…

…4610)

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# Description

This PR adds documentation related to how to reindex feedback datasets
for search when using quickstart images.

Closes #4603 

**Type of change**

(Remember to title the PR according to the type of change)

- [X] Documentation update

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

docs/_source/getting_started/installation/configurations/database_migrations.md

@@ -235,3 +235,11 @@ argilla server search-engine reindex --feedback-dataset-id 08476931-ac30-4eec-9a
 :::
 
 ::::
+
+If you are using the quickstart docker image, you can set the `REINDEX_DATASETS` environment variable to `true` to reindex the datasets.
+You can visit the [Docker Quickstart](/getting_started/installation/deployments/docker-quickstart) deployment page for more information.
+
+:::
+
+::::
+

docs/_source/getting_started/installation/deployments/deployments.md

@@ -16,7 +16,7 @@
 - Argilla Server and UI
 ```
 ```{grid-item-card} Docker Quickstart
-:link: docker.md
+:link: docker-quickstart.md
 
 - A combined Docker image
 - Environment Variables

docs/_source/getting_started/installation/deployments/docker-quickstart.md

@@ -42,4 +42,8 @@ This will run the latest quickstart docker image with 3 users `owner`, `admin` a
   supported values for this variable are as follows:
     1. `single`: Load single datasets for Feedback task.
     2. `full`: Load all the sample datasets for NLP tasks (Feedback, TokenClassification, TextClassification, Text2Text)
-    3. `none`: No datasets are loaded.
+    3. `none`: No datasets are loaded.
+- `REINDEX_DATASETS`: This variable will allow you to reindex the datasets. This must be done when a new version includes changes in the search index definition.
+  The default value will be `false`. The supported values for this variable are as follows:
+    1. `true`: Reindex the datasets.
+    2. `false`: Do not reindex the datasets.