chore: update readme

[codecov-commenter]

Codecov Report

Base: 20.90% // Head: 20.99% // Increases project coverage by +0.08% :tada:

Coverage data is based on head (5912594) compared to base (f1df860). Patch has no changes to coverable lines.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #152 +/- ## ========================================== + Coverage 20.90% 20.99% +0.08% ========================================== Files 16 16 Lines 2334 2348 +14 ========================================== + Hits 488 493 +5 - Misses 1816 1826 +10 + Partials 30 29 -1 ``` | [Impacted Files](https://codecov.io/gh/application-research/autoretrieve/pull/152?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=application-research) | Coverage Δ | | |---|---|---| | [blocks/randompruner.go](https://codecov.io/gh/application-research/autoretrieve/pull/152/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=application-research#diff-YmxvY2tzL3JhbmRvbXBydW5lci5nbw==) | `0.00% <0.00%> (ø)` | | | [blocks/manager.go](https://codecov.io/gh/application-research/autoretrieve/pull/152/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=application-research#diff-YmxvY2tzL21hbmFnZXIuZ28=) | `85.00% <0.00%> (+5.00%)` | :arrow_up: | Help us with your feedback. Take ten seconds to tell us [how you rate us](https://about.codecov.io/nps?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=application-research). Have a feature suggestion? [Share it here.](https://app.codecov.io/gh/feedback/?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=application-research)

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[anjor]

Would also love some information about performance. How long does a retrieval request take? What does that scale with?

Also would like some information about how this is different/better/worse than what we have today? Why is it not possible/difficult to just look up data using lotus directly?

[jcace]

this is awesome @elijaharita ! Added a few more questions I'm curious about, but feel free to disregard if they're too in-depth for this article 🙏