add readme chapter 8

Author: lfunderburk

ch8/README.md

@@ -1,5 +1,11 @@
+# Description
 
+Exercises for Chapter 8. "Hands-on projects"
 
-```bash
-python -m ipykernel install --user --name=venv --display-name "NLP pipelines"
-```
+## Mini projects
+
+1. [Perform Named Entity Recognition (NER)](./named-entity-recognition/) - this folder contains two sample applications for NER:
+    * [Extracting entities from a dataset containing articles - stand alone component](./named-entity-recognition/ner-with-haystack-search-pipeline.ipynb)
+    * [Extracting entities after a web search - pipeline with custom component](./named-entity-recognition/ner-with-haystack-search-pipeline.ipynb)
+2. [Perform text classification and sentiment analysis](./text-classification/)
+3. [Build a chatbot or virtual assistant](./chatbot-virtual-assistant/)