docs(devindex): Refine Introduction disclaimer and cap context (#9323)

- Rewrote legal disclaimer to use a more understated tone, framing DevIndex as an independent index rather than a tech demo.
- Removed marketing language to let the framework's performance speak for itself.
- Updated the Meritocracy Filter section to reflect the ~23MB uncompressed file size.
- Added context that the current entry bar for the top 50k is 2,134 lifetime contributions (as of Feb 27, 2026).

Author: tobiu

learn/guides/devindex/Introduction.md

@@ -1,6 +1,6 @@
 # Introduction & Overview
 
-> **Legal Disclaimer:** DevIndex is an independent, MIT-licensed open-source project created by the Neo.mjs team. It is **not officially affiliated with, endorsed by, or associated with GitHub, Inc.** in any way. The project serves as a high-performance technological showcase for the Neo.mjs application engine (demonstrating world-class buffered data grids streaming up to 50,000 records) and utilizes publicly available data provided by the GitHub API. We respect user privacy, utilize no tracking cookies, and run no advertisements.
+> **Legal Disclaimer:** DevIndex is an independent, MIT-licensed open-source project created by the Neo.mjs team. It is **not officially affiliated with, endorsed by, or associated with GitHub, Inc.** in any way. The project serves as an independent index for the open-source community, built on the Neo.mjs application engine to manage data grids streaming 50,000 records. It utilizes publicly available data provided by the GitHub API. We respect user privacy, utilize no tracking cookies, and run no advertisements.
 
 ## Project Motivation & The "Invisibility" Problem
 
@@ -53,9 +53,9 @@ This aggregated, clean dataset opens up entirely new avenues for data science wi
 - **Ecosystem Health:** Measuring the sustainability of open-source communities by analyzing contribution distribution (e.g., identifying "bus factor" risks across top repositories).
 - **AI Impact:** Studying the shifting contribution patterns as AI agents and LLMs become more prevalent in the development lifecycle. As AI-augmented development becomes mainstream, we track the ratio of commits to total contributions as a longitudinal signal of how developer workflows are evolving. *Example: In 2022-2023, researchers can observe how aggregate commit ratios shift across countries as tools like Copilot accelerate code generation.*
 
-Because a client-side web application cannot practically download 180 million records, we enforce a strict **Meritocracy Filter** with a hard cap at the top 50,000 most active developers. The rationale is purely network-based: at 50,000 users, our raw JSONL data file reaches ~20MB (around 8MB gzipped). While the Neo.mjs UI engine itself can effortlessly render significantly more records without performance degradation, forcing casual visitors to download larger payloads would be unreasonable. 
+Because a client-side web application cannot practically download 180 million records, we enforce a strict **Meritocracy Filter** with a hard cap at the top 50,000 most active developers. The rationale is purely network-based: at 50,000 users, our raw JSONL data file reaches ~23MB (around 8MB gzipped). While the Neo.mjs UI engine itself can effortlessly render significantly more records without performance degradation, forcing casual visitors to download larger payloads would be unreasonable. 
 
-To mitigate load times, the data is **streamed** to the client. The application becomes fully functional with the initially loaded subset of data, and users can stop the ongoing data stream at any given moment. Once the 50k cap is reached, the entry threshold dynamically rises, ensuring only the most prolific contributors remain in the index.
+To mitigate load times, the data is **streamed** to the client. The application becomes fully functional with the initially loaded subset of data, and users can stop the ongoing data stream at any given moment. Once the 50k cap is reached, the entry threshold dynamically rises, ensuring only the most prolific contributors remain in the index. For context, as of February 27, 2026, the minimum entry bar to break into the global top 50k is 2,134 lifetime contributions.
 
 ## Rich Data & Inclusivity