update readme

vultr · Jul 11, 2024 · 194bcb1 · 194bcb1
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 ## Overview
 `v-agent` is a daemon that gathers metrics and writes them to a compatible [remote_write](https://prometheus.io/docs/specs/remote_write_spec/) endpoint.
 
+It acts like prometheus (scraping metrics), re-labeling metrics, then pushing them off to a remote_write compatible endpoint. Internally, we use mimir and write our metrics there but other implementations _should_ work.
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 ### Metrics
 All metrics that are specifically created with `v-agent` are prefixed with `v_`. Scraped metrics are not modified other than the addition of labels.