Worked on the opentelemetry-collector-contrib repository to improve documentation for the PostgreSQL receiver by standardizing naming conventions throughout the README. Focused on replacing inconsistent references to 'postgresql' with the correct 'PostgreSQL' branding in tutorials and documentation, while ensuring configuration keys remained lowercase for technical accuracy. This documentation-only update, implemented using Markdown and technical writing skills, aimed to align branding, reduce onboarding friction, and minimize confusion for both users and contributors. The changes were linked to a specific tracking issue and commit, providing clear traceability and repeatability. No bugs were fixed during this period, with efforts concentrated on documentation quality.