Documentation: Update build instructions to remove -GXcode suggestion

Also some other assorted docs cleanup.

Author: ADKaster

Documentation/BuildInstructionsLadybird.md

@@ -129,14 +129,14 @@ cmake -GNinja -BBuild/release
 Finally, run `ninja` (or the generator you're using) to start the build:
 
 ```
-ninja -CBuild/release
+ninja -C Build/release
 ```
 
 For more information, see [Custom CMake build directory](#custom-cmake-build-directory) and [Running manually](#running-manually).
 
 ### macOS:
 
-Xcode 14 versions before 14.3 might crash while building ladybird. Xcode 14.3 or clang from homebrew may be required to successfully build ladybird.
+Xcode 15 or clang from homebrew is required to successfully build ladybird.
 
 ```
 xcode-select --install
@@ -214,7 +214,7 @@ The simplest way to build and run ladybird is via the ladybird.sh script:
 
 ```bash
 # From /path/to/ladybird
-./Meta/ladybird.sh run ladybird
+./Meta/ladybird.sh run
 ```
 
 On macOS, to build using clang from homebrew:
@@ -231,11 +231,14 @@ The above commands will build a Release version of Ladybird. To instead build a
 `Meta/ladybird.sh` script with the value of the `BUILD_PRESET` environment variable set to `Debug`, like this:
 
 ```bash
-BUILD_PRESET=Debug ./Meta/ladybird.sh run ladybird
+BUILD_PRESET=Debug ./Meta/ladybird.sh run
 ```
 
 Note that debug symbols are available in both Release and Debug builds.
 
+If you want to run other applications, such as the headless-browser, the JS REPL, or the WebAssembly REPL, specify an
+executable with `./Meta/ladybird.sh run <executable_name>`.
+
 ### The User Interfaces
 
 Ladybird will be built with one of the following browser frontends, depending on the platform:
@@ -305,9 +308,9 @@ a suitable C++ compiler (g++ >= 13, clang >= 14, Apple Clang >= 14.3) via the CM
 CMAKE_C_COMPILER cmake options.
 
 ```
-cmake -GNinja -B MyBuildDir
+cmake --preset default -B MyBuildDir
 # optionally, add -DCMAKE_CXX_COMPILER=<suitable compiler> -DCMAKE_C_COMPILER=<matching c compiler>
-cmake --build MyBuildDir
+cmake --build --preset default MyBuildDir
 ninja -C MyBuildDir run-ladybird
 ```
 
@@ -367,15 +370,8 @@ Simply run the `ladybird.sh` script as normal, and then make sure to codesign th
 
 Now you can open the Instruments app and point it to the Ladybird app bundle.
 
-If you want to use Xcode itself for debugging, you will need to generate an Xcode project.
-The `ladybird.sh` build script does not know how to generate Xcode projects, so creating the project must be done manually.
-
-```
-cmake -GXcode -B Build/release
-```
-
-After generating an Xcode project into the specified build directory, you can open `ladybird.xcodeproj` in Xcode. The project has a ton of targets, many of which are generated code.
-The only target that needs a scheme is the ladybird app bundle.
+Building the project with Xcode is not supported. The Xcode project generated by CMake does not properly execute custom
+targets, and does not handle all target names in the project.
 
 ### Building on OpenIndiana