fixed Oracle favicon to use an svg

[krisrice]

fixed Oracle favicon to use an svg as the favicon from www.oracle.com was not loading. Added oracle.svg to our main mcp repo and referencing it in the img tag

Description

Server Details

• Server: oracle
• Changes to: img src= change in the README

Motivation and Context

favicon was not loading

How Has This Been Tested?

logo loads now.

Breaking Changes

no

Types of changes

• [ x] Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation update

Checklist

• [ x] I have read the MCP Protocol Documentation
• [ x] My changes follows MCP security best practices
• [ x] I have updated the server's README accordingly
• I have tested this with an LLM client
• [ x] My code follows the repository's style guidelines
• New and existing tests pass locally
• I have added appropriate error handling
• I have documented all environment variables and configuration options

Additional context

[domdomegg]

Thanks!