update s3 bindings links

[martbln]

Thank you for helping make the Dapr documentation better!

Please follow this checklist before submitting:

• Commits are signed with Developer Certificate of Origin (DCO - learn more)
• Read the contribution guide
• Commands include options for Linux, MacOS, and Windows within codetabs
• New file and folder names are globally unique
• Page references use shortcodes instead of markdown or URL links
• Images use HTML style and have alternative text
• Places where multiple code/command options are given have codetabs

In addition, please fill out the following to help reviewers understand this pull request:

Description

Fixed the links to S3 bindings operations in the documentation.

Issue reference

[msfussell]

@martbln - Thanks for this PR. I suggest that we make this consistent, by renaming all the heading to files and referencing objects. So I suggest changing the following and also changing the headers to match. Could you take a pass on the whole topic? Thanks

• create : Create object
• get : Get object
• delete : Delete object
• list: List objects

[msfussell]

@martbln - Would love to get this change in tomorrow. Can you look at my feedback?

[msfussell]

@martbln - Pinging again?

[yaron2]

@martbln - Pinging again?

Changes addressed. Thanks for your contribution @martbln