Slight corrections to Readmes.

Author: uli-objectbox

README.md

@@ -123,7 +123,7 @@ If you've used the ObjectBox betas, there are a few changes we made for the 1.0
 improve the experience before we freeze the API for release. The adjustments you'll have to make are:
 
 1. `isEmpty()`, `count()`, `all()`, `sum()`, `min()`, `max()` etc. are now functions to make it clearer they may perform a database lookup and aren't just properties to read.
-2. `putImmutable()` is now gone. Just call `put()` instead, it now returns the IDs like `putImmutable` used to.
+2. To put a struct and update its ID, use `put(inout)` or `putAndReturnIDs()`. `putImmutable()` is gone.
 3. The old `Id<>` type has been renamed to `EntityId<>`. There is now a new `Id` type that does not use generics.
 4. Changes to standalone relations need to be saved explicitly using a call to `applyToDb()`.
 5. Most calls have been revised to now throw errors, so you'll have to add the requisite `try` statements.

Source/README.md

@@ -17,7 +17,7 @@ Repository Contents
 Setup
 -----
 
-* Install Xcode 10.2+ (Swift 5.x) with command line tools prepared to build from the shell
+* Install Xcode 11.2+ (Swift 5.1+) with command line tools prepared to build from the shell
 * Run `git submodule update --init --recursive` to get external dependencies
 * Run `make build_swiftlint` to build the build SwiftLint from source into its `external/SwiftLint/.build` directory.
 * The Sourcery submodule contains a `_build.command` script that you can double-click to build a release-ready version of the code generator.