docs: add README_3.md

[AgentWrapper]

Adds a docs-only README_3.md at the repo root containing creative placeholder content (a fictional changelog). No other files are modified.

This is a documentation-only change; no tests or builds are affected.

[greptile-apps]

Greptile Summary

This PR adds README_3.md at the repo root, continuing an established series of creative placeholder markdown files (README_1.md, README_2.md). The file contains a fictional versioned changelog written in a poetic prose style; no source code, tests, or build configuration is touched.

• README_3.md is a standalone fictional document and follows the same narrative style as its siblings — it is not linked from README.md or any other doc, matching the existing pattern for this series.
• No functional code is affected; this is a pure documentation addition with no risk to the build or runtime behavior.

Confidence Score: 5/5

Safe to merge — the change is a single new markdown file with no impact on code, tests, or build.

The addition is a standalone prose document that follows the existing README_1/README_2 placeholder pattern. Nothing in the repository references or consumes these files, so there is no risk of breakage.

No files require special attention.

Important Files Changed

Filename	Overview
README_3.md	New docs-only file adding a fictional changelog in prose form, consistent with the existing README_1.md and README_2.md placeholder pattern.

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    ROOT["README.md\n(project root)"]
    DOCS["docs/README.md\n(architecture docs)"]
    R1["README_1.md\n(placeholder — v0.1.0–v0.3.0 fictional log)"]
    R2["README_2.md\n(placeholder — cartographer's notebook)"]
    R3["README_3.md ✨ NEW\n(placeholder — imaginary machine changelog)"]

    ROOT --> DOCS
    ROOT -.->|"not linked"| R1
    ROOT -.->|"not linked"| R2
    ROOT -.->|"not linked"| R3

Loading

_{Reviews (1): Last reviewed commit: "docs: add README_3.md" | Re-trigger Greptile}