Merge branch 'master' of https://github.com/fw876/helloworld

.gitignore

@@ -0,0 +1,18 @@
+*.o
+.DS_Store
+.*.swp
+/.github/copilot-instructions.md
+/*.patch
+key-build*
+*.orig
+*.rej
+*~
+.#*
+*#
+.emacs.desktop*
+TAGS*~
+git-src
+.project
+.cproject
+.ccache
+.vscode*