Update weaviate version in contextionary newspublication example

[dobraczka]

Why:

This PR fixes: #67

What does your app/demo do?:

Loads the newspublication example using the contextionary vectorizer.

How Has This Been Tested?

I updated the docker-compose.yml using the code provided in the contextionary example
Then I started the updated docker-compose.yml and successfully ran the following Python code with version 4.9.3 of the Python client library:

import weaviate

with weaviate.connect_to_local() as client:
    articles = client.collections.get("Article")
    response = articles.query.hybrid(query="Hockey",limit=2)
    for o in response.objects:
        print(o.properties)

Have you included a README.md file in your example?

I have adapted the existing README to include the query example and updated outdated links.

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[dobraczka]

I agree with the CLA.