added the path for the how-to-guide docs for copy into Snowflake

[Srivats7]

Added the path for the how-to-guide docs for copy into Snowflake for Google Cloud Storage (GCS) & Microsoft Azure Blob Storage providers

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[boring-cyborg]

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[amoghrajesh]

Thanks for your contribution, looks good to me!

[amoghrajesh]

@Srivats7 the static checks are failing on this PR, could you please check?

[Srivats7]

@amoghrajesh, I have included the path for the how-to-guide doc in the provider.yaml as well.

[boring-cyborg]

Awesome work, congrats on your first merged pull request! You are invited to check our Issue Tracker for additional contributions.