Merge pull request #64 from codecrafters-io/andy/tweak

Update Makefile to clone core repository with depth 1

Author: andy1li

Makefile

@@ -3,6 +3,6 @@ install:
 	if [ ! -L /usr/local/bin/course-sdk ]; then sudo ln -sf $(shell pwd)/main.out /usr/local/bin/course-sdk; fi
 
 update_schemas:
-	gh repo clone codecrafters-io/core /tmp/codecrafters-core-tmp
+	gh repo clone codecrafters-io/core /tmp/codecrafters-core-tmp --depth 1
 	cp /tmp/codecrafters-core-tmp/data/course_definition_schema.json ./schemas/course-definition.json
 	rm -rf /tmp/codecrafters-core-tmp