DOC-1002: Update Groq credentials to template

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Overall readability score: 42.5 (🟢 +0.03)

File	Readability
groq.md	48.53 (🟢 +34.6)

View detailed metrics

🟢 - Shows an _increase_ in readability 🔴 - Shows a _decrease_ in readability File | Readability | FRE | GF | ARI | CLI | DCRS --- | --- | --- | --- | --- | --- | --- [groq.md](https://github.com/n8n-io/n8n-docs/blob/736e26555dd96bea30b29b564ab2c9b5c40ca2cd/docs/integrations/builtin/credentials/groq.md "docs/integrations/builtin/credentials/groq.md") | 48.53 | 34.83 | 8.84 | 14.9 | 15.58 | 7.82   | 🟢 +34.6 | 🟢 +34.83 | 🟢 +3.87 | 🟢 +7.1 | 🟢 +3.42 | 🟢 +2.2 Averages:   | Readability | FRE | GF | ARI | CLI | DCRS --- | --- | --- | --- | --- | --- | --- Average | 42.5 | 34.37 | 11.76 | 14.98 | 14.43 | 8.58   | 🟢 +0.03 | 🟢 +0.03 | 🟢 +0 | 🟢 +0.01 | 🟢 +0 | 🟢 +0

View metric targets

Metric | Range | Ideal score --- | --- | --- Flesch Reading Ease | 100 (very easy read) to 0 (extremely difficult read) | 60 Gunning Fog | 6 (very easy read) to 17 (extremely difficult read) | 8 or less Auto. Read. Index | 6 (very easy read) to 14 (extremely difficult read) | 8 or less Coleman Liau Index | 6 (very easy read) to 17 (extremely difficult read) | 8 or less Dale-Chall Readability | 4.9 (very easy read) to 9.9 (extremely difficult read) | 6.9 or less

[freakwriter]

@ayatnkw super simple changes, so this should be a quick one to review!