Improve error messaging in verifyPackageTree.js (facebook#5974)

Author: stephen-algeo

scripts/utils/verifyPackageTree.js

@@ -97,7 +97,7 @@ function verifyPackageTree() {
             )}) \n\n` +
             `Manually installing incompatible versions is known to cause hard-to-debug issues.\n\n` +
             chalk.red(
-              `If prefer to ignore this check, add ${chalk.bold(
+              `If you would prefer to ignore this check, add ${chalk.bold(
                 'SKIP_PREFLIGHT_CHECK=true'
               )} to an ${chalk.bold('.env')} file in your project.\n` +
                 `That will permanently disable this message but you might encounter other issues.\n\n`