Remove confusing <> from variable intro

The existing intro makes it look like you should use `$<varname>` to refer to a variable. That of course is incorrect, and you should use `$varname`. In my experience using the <> marker around variable names should only be used when there isn't something else explicit to set it off. In this case we have `$`. Below, you can see the <> are also not used, because we have the `[[]]` to set it off. The inconsistency is confusing.
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Quentin Hartman 2018-11-26 15:33:13 -07:00 committed by GitHub
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@ -25,7 +25,7 @@ the value, using the dropdown at the top of the dashboard, your panel's metric q
Panel titles and metric queries can refer to variables using two different syntaxes:
- `$<varname>` Example: apps.frontend.$server.requests.count
- `$varname` Example: apps.frontend.$server.requests.count
- `[[varname]]` Example: apps.frontend.[[server]].requests.count
Why two ways? The first syntax is easier to read and write but does not allow you to use a variable in the middle of word. Use