Task: Manage changes using the Git node

n8n workflow JSON:
{"nodes":[{"name":"On clicking 'execute'","type":"n8n-nodes-base.manualTrigger","position":[230,320],"parameters":{},"typeVersion":1},{"name":"Git","type":"n8n-nodes-base.git","position":[430,320],"parameters":{"operation":"add","pathsToAdd":"README.md"},"typeVersion":1},{"name":"Git1","type":"n8n-nodes-base.git","position":[630,320],"parameters":{"message":"✨ First commit from n8n","options":{},"operation":"commit","repositoryPath":"={{$node[\"Git\"].parameter[\"repositoryPath\"]}}"},"typeVersion":1},{"name":"Git2","type":"n8n-nodes-base.git","position":[830,320],"parameters":{"options":{},"repositoryPath":"={{$node[\"Git\"].parameter[\"repositoryPath\"]}}"},"typeVersion":1},{"name":"Git3","type":"n8n-nodes-base.git","position":[1030,320],"parameters":{"options":{},"operation":"push","repositoryPath":"={{$node[\"Git\"].parameter[\"repositoryPath\"]}}"},"executeOnce":false,"typeVersion":1}],"connections":{"Git":{"main":[[{"node":"Git1","type":"main","index":0}]]},"Git1":{"main":[[{"node":"Git2","type":"main","index":0}]]},"Git2":{"main":[[{"node":"Git3","type":"main","index":0}]]},"On clicking 'execute'":{"main":[[{"node":"Git","type":"main","index":0}]]}}}