More key concept tests
- Verify how the time range points are calculated
- Vefify that a range query is equivalent to many instant queries
Fix docs accordingly.
### Checklist
The following checks are **mandatory**:
- [x] My change adheres [VictoriaMetrics contributing
guidelines](https://docs.victoriametrics.com/contributing/).
Signed-off-by: Artem Fetishev <rtm@victoriametrics.com>
### Describe Your Changes
Christmas is early and you get the first present in the shape of
spelling fixes.
Sorry for the big amount :)
### Checklist
- [x] My change adheres [VictoriaMetrics contributing
guidelines](https://docs.victoriametrics.com/contributing/).
(cherry picked from commit 2e8f420d84)
This commit changes the following:
- The datetime has been fixed so it corresponds to the timestamps in example samples. The datetime now also include the UTC time zone and is changed to adhere ISO format.
- The data points in query range result have been fixed to match the inserted data.
Signed-off-by: Artem Fetishev <rtm@victoriametrics.com>
(cherry picked from commit d311c12dce)
Moving key-concepts-related docs to a separate dir should make it easier
to navigate in `docs/` folder and helps to avoid adding prefixes to
image assets.
-----------
The change shouldn't have any visual changes or changes to the links.
Signed-off-by: hagen1778 <roman@victoriametrics.com>
(cherry picked from commit 22975d28ae)
