Change the openat macro to use the syscall intrinsic for 4 argument syscalls

.gitignore

@@ -5,4 +5,5 @@ __pycache__/
 *.o
 *.dot
 *.svg
+*.ppm
 porth

.vscode/settings.json

@@ -0,0 +1,6 @@
+{
+	"cSpell.enabled": true,
+	"cSpell.words": [
+		"O_WRONLY"
+	]
+}

CONTRIBUTING.md

@@ -1,5 +1,9 @@
 No contributions are accepted right now since the language is not
-stablized yet and I'm still actively experimenting with the design.
+stablized yet and I'm actively experimenting with the
+design. Contributions will be opened later when I feel that the
+language is stable enough. Feel free to do whatever you want with the
+source code itself according to the MIT license though.
 
-Feel free to do whatever you want with the code itself according to
-the MIT license though.
+If you have any questions about the language or want to report bugs
+(NO FEATURE REQUESTS) please send them to [email protected] or
+[email protected]