Make demo notebook runnable in Colab

[leemthompo]

Summary:

• Upload dataset directly in notebook
• Create index with mappings
• Ignore docs that fail to index
• Group imports and installs

Related work:

This is a more simplistic approach to https://github.com/elastic/eland/pull/604

Preview in Colab

Visual diff

(Just the opening section — no changes to the actual examples)

[leemthompo]

Should be good now using

def generate_actions(data):
    for idx, entry in enumerate(data, start=0):  # Use monotonically increasing IDs starting from 0
        yield {
            "_index": FLIGHTS_INDEX_NAME,
            "_id": idx,  # Use the current index as the document ID
            "_source": entry
        }