Typo in `useSegmentEndpoints` client option in README

[arfordweb]

The README states there is a property called useSegmentEndpoint, but that appears to be a typo. In the code, I'm seeing useSegmentEndpoints (plural).

• analytics-react-native version: 2.22.0
• Integrations versions (if used): n/a
• React Native version: n/a
• iOS or Android or both? n/a

Steps to reproduce
View the README and search source code for useSegmentEndpoint.

Expected behavior
README and source code should be consistent in the spelling of the useSegmentEndpoint(s) client option.

Actual behavior
README is singular (useSegmentEndpoint) and source code is plural (useSegmentEndpoints).