DOC-1051: Update Mistral Cloud credentials to medium tier template

[freakwriter]

Convert to more detailed numbered instructions.

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Overall readability score: 43.02 (🟢 +0.01)

File	Readability
mistral.md	38.86 (🟢 +14.01)

View detailed metrics

🟢 - Shows an _increase_ in readability 🔴 - Shows a _decrease_ in readability File | Readability | FRE | GF | ARI | CLI | DCRS --- | --- | --- | --- | --- | --- | --- [mistral.md](https://github.com/n8n-io/n8n-docs/blob/53630f15ee257e29cc456b896370c0a9bd9d6c68/docs/integrations/builtin/credentials/mistral.md "docs/integrations/builtin/credentials/mistral.md") | 38.86 | 17.81 | 8.36 | 17.5 | 18.83 | 7.61   | 🟢 +14.01 | 🟢 +16.11 | 🟢 +1.58 | 🟢 +2.9 | 🟢 +0.17 | 🟢 +1.3 Averages:   | Readability | FRE | GF | ARI | CLI | DCRS --- | --- | --- | --- | --- | --- | --- Average | 43.02 | 34.76 | 11.68 | 14.89 | 14.37 | 8.55   | 🟢 +0.01 | 🟢 +0.01 | 🟢 +0 | 🟢 +0 | 🟢 +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