Anomaly detection notebook (#348)

* Anomaly detection notebook

Here is a short notebook on anomaly detection using Pycaret and CrateDB. This was based on the blog post by Christian https://cratedb.com/blog/introduction-to-time-series-modeling-with-cratedb-machine-learning-time-series-data

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Co-authored-by: Andreas Motl <andreas.motl@crate.io>

Author: karynzv

topic/timeseries/README.md

@@ -41,6 +41,10 @@ repository, e.g. about machine learning, to see predictions and AutoML in action
 
   Furthermore, it shows how to preprocess data and plot time series decomposition by breaking it down into its basic components: trend, seasonality, and residual (or irregular) fluctuations.
 
+- `time-series-anomaly-detection.ipynb` [![Open on GitHub](https://img.shields.io/badge/Open%20on-GitHub-lightgray?logo=GitHub)](time-series-anomaly-detection.ipynb) [![Open in Collab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/crate/cratedb-examples/blob/main/topic/timeseries/time-series-anomaly-detection.ipynb)
+
+  This notebook walks you through the anomaly detection analysis using the PyCaret library.
+
 - `weather-data-grafana-dashboard.json`
 
   An exported JSON representation of a Grafana dashboard designed to visualize weather data. This dashboard includes a set of pre-defined panels and widgets that display various weather metrics. Additionally, within this dashboard configuration, there are advanced time-series analysis queries. These queries are tailored to fetch, aggregate, interpolate, and process weather data over time.
@@ -71,5 +75,4 @@ time pytest -k explo
 time pytest -k visu
 ```
 
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 [CrateDB]: https://github.com/crate/crate