Update README.md

Grammatical fixes.
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# loadbalance
`loadbalance` acts as a round-robin DNS loadbalancer by randomizing A and AAAA records in the
message. See [Wikipedia](https://en.wikipedia.org/wiki/Round-robin_DNS) about the pros and cons
`loadbalance` acts as a round-robin DNS loadbalancer by randomizing the order of A and AAAA records in the answer. See [Wikipedia](https://en.wikipedia.org/wiki/Round-robin_DNS) about the pros and cons
on this setup.
It will take care to sort any CNAMEs before any address records, because some stub resolver
implementation (like glibc) can't handle that.
implementations (like glibc) are particular about that.
## Syntax