Merge pull request #18 from aleclarson/chore/readonly-json-file

chore: mark c3.tmLanguage.json as readonly

Author: tonis2

.vscode/settings.json

@@ -0,0 +1,5 @@
+{
+  "files.readonlyInclude": {
+    "syntaxes/c3.tmLanguage.json": true
+  }
+}