Merge pull request swiftlang#32701 from Jumhyn/update-readme-7320

Author: swift-ci

README.md

@@ -241,7 +241,7 @@ various products. These incremental builds are a big timesaver when developing
 and debugging.
 
     cd ${SWIFT_BUILD_DIR}
-    ninja swift
+    ninja swift-frontend
 
 This will build the Swift compiler, but will not rebuild the standard library or
 any other target. Building the `swift-stdlib` target as an additional layer of
@@ -258,7 +258,7 @@ To open the Swift project in Xcode, open `${SWIFT_BUILD_DIR}/Swift.xcodeproj`.
 It will auto-create a *lot* of schemes for all of the available targets. A
 common debug flow would involve:
 
- - Select the 'swift' scheme.
+ - Select the 'swift-frontend' scheme.
  - Pull up the scheme editor (⌘⇧<).
  - Select the 'Arguments' tab and click the '+'.
  - Add the command line options.