docs: Change "basic" to "basic_0" (#1119)

docs/src/tutorials/tutorial-0.md

@@ -97,7 +97,7 @@ a `target/idl/basic_0.json` file is created. Inspecting its contents you should
 ```json
 {
   "version": "0.1.0",
-  "name": "basic",
+  "name": "basic_0",
   "instructions": [
     {
       "name": "initialize",