Typo "Azure pipeline"→"Azure Pipeline"

[hyoshioka0128]

https://learn.microsoft.com/en-us/composer/how-to-cicd

PingMSFTDocs

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Document Details

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• ID: 54d8d9e9-4f29-b57c-859b-8e9617a4d926
• Version Independent ID: 3f964654-4027-2578-7863-0db2ea539357
• Content: Set up continuous integration and continuous delivery (CI/CD) for Bot Framework Composer bots
• Content Source: composer-docs/how-to-cicd.md
• Service: bot-composer
• GitHub Login: @JonathanFingold
• Microsoft Alias: iawilt