fix(otlp): OTLP docs small improvements

[gggritso]

• Add enrollment information so people know who to contact to try OTLP
• Remove platform link, since it was broken for almost everyone: it's platform content that only exists in JavaScript, so linking there from a general concepts document didn't work well

[vercel]

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Name	Status	Preview	Comments	Updated (UTC)
sentry-docs	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jul 29, 2025 3:29pm

1 Skipped Deployment

Name	Status	Preview	Comments	Updated (UTC)
develop-docs	⬜️ Ignored (Inspect)	Visit Preview		Jul 29, 2025 3:29pm

[codecov]

Bundle Report

Changes will increase total bundle size by 153 bytes (0.0%) ⬆️. This is within the configured threshold ✅

Detailed changes

Bundle name	Size	Change
sentry-docs-client-array-push	9.85MB	-6 bytes (-0.0%) ⬇️
sentry-docs-server-cjs	12.26MB	159 bytes (0.0%) ⬆️

Affected Assets, Files, and Routes:

view changes for bundle: sentry-docs-server-cjs

Assets Changed:

Asset Name	Size Change	Total Size	Change (%)
1729.js	-3 bytes	1.75MB	-0.0%
../instrumentation.js	-3 bytes	1.08MB	-0.0%
9523.js	-3 bytes	1.05MB	-0.0%
../app/[[...path]]/page.js.nft.json	56 bytes	730.83kB	0.01%
../app/platform-redirect/page.js.nft.json	56 bytes	730.74kB	0.01%
../app/sitemap.xml/route.js.nft.json	56 bytes	728.21kB	0.01%

view changes for bundle: sentry-docs-client-array-push

Assets Changed:

Asset Name	Size Change	Total Size	Change (%)
static/chunks/pages/_app-*.js	-3 bytes	879.71kB	-0.0%
static/chunks/1831-*.js	-3 bytes	422.23kB	-0.0%
static/MQqAGTbo-*.js (New)	77 bytes	77 bytes	100.0% 🚀
static/MQqAGTbo-*.js (New)	684 bytes	684 bytes	100.0% 🚀
static/QS667e4l0ABRWrODD3js1/_buildManifest.js (Deleted)	-684 bytes	0 bytes	-100.0% 🗑️
static/QS667e4l0ABRWrODD3js1/_ssgManifest.js (Deleted)	-77 bytes	0 bytes	-100.0% 🗑️

[coolguyzone]

LGTM