Document current SDK installation and stable API contract selection

Author: billyoshall

README.md

@@ -17,7 +17,7 @@ Get a key at [parseapi.com](https://parseapi.com). The client also reads `PARSEA
 
 ## API versions
 
-Version 1.7.0 explicitly selects the API contract supported by this SDK. It sends `Parse-Version: 2.0.0` on every lookup so responses match the API contract supported by the package. Your key and the team's saved default stay the same.
+This SDK explicitly selects the API contract supported by this SDK. It sends `Parse-Version: 2.0.0` on every lookup so responses match the API contract supported by the package. Your key and the team's saved default stay the same.
 
 Upgrade the dependency in staging, review the [release notes](https://parseapi.com/docs/releases), and test the application before deploying the same code and dependency version to production. Commit your dependency lockfile so the tested package travels with your deployment. Future major SDK upgrades can select a newer API contract.