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Docs: Update index.md to not escape dollar sign (#61694)

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Update index.md to not escape dollar sign

the backslash is useful in json files, but not where most users will see it
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jeremybanzhaf 2023-01-23 22:57:11 +01:00 committed by GitHub
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docs/sources/datasources/prometheus/template-variables/index.md
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@ -99,7 +99,7 @@ For details, refer to the [Grafana blog](/blog/2020/09/28/new-in-grafana-7.2-__r
The Prometheus data source supports two variable syntaxes for use in the **Query** field:
- `$<varname>`, for example `rate(http_requests_total{job=~"\$job"}[$_rate_interval])`, which is easier to read and write but does not allow you to use a variable in the middle of a word.
- `$<varname>`, for example `rate(http_requests_total{job=~"$job"}[$_rate_interval])`, which is easier to read and write but does not allow you to use a variable in the middle of a word.
- `[[varname]]`, for example `rate(http_requests_total{job=~"[[job]]"}[$_rate_interval])`
If you've enabled the _Multi-value_ or _Include all value_ options, Grafana converts the labels from plain text to a regex-compatible string, which requires you to use `=~` instead of `=`.