Refactor .gitignore and macOS guide SDK version

Apply sort to .gitignore.
Add **/.DS_Store to .gitignore to improve compatibility with macOS.

Change SDK version from 15.0 to 15 due to new version release.

.gitignore

@@ -1,14 +1,15 @@
-cmake-build-debug/
-build/
-Build/
-BUILD/
-bUILD/
-Datasets/
-.sconsign.dblite
-lib/
+**/.DS_Store
+**/myeasylog.log
 .csv
 .idea/
+.sconsign.dblite
 .vscode/
-**/myeasylog.log
-dist
-venv
+BUILD/
+Build/
+Datasets/
+bUILD/
+build/
+cmake-build-debug/
+dist/
+lib/
+venv/

README.md

@@ -285,7 +285,7 @@ export CXX=g++-14
 export SDKROOT=/Library/Developer/CommandLineTools/SDKs/MacOSX14.sdk/
 ```
 The first two lines set GCC as the default compiler in CMake. The last export is also necessary due to issues with GCC 14 and
-the last MacOSX15.0.sdk used by CMake by default, you can read more about this [here](https://gist.github.com/scivision/d69faebbc56da9714798087b56de925a)
+the last macOS 15 SDK used by CMake by default, you can read more about this [here](https://gist.github.com/scivision/d69faebbc56da9714798087b56de925a)
 and [here](https://github.com/iains/gcc-14-branch/issues/11).
 
 ### Building the project