fix project_slug error.

replace ml_pipeline with project_name or module_name from config

{{cookiecutter.project_name}}/Makefile

@@ -0,0 +1,36 @@
+APP_NAME={{cookiecutter.module_name}}
+PYTHON=.venv/bin/python3
+INTERPRETER=/usr/bin/python3
+.PHONY: help test
+
+
+all: help
+
+init: ## create a venv
+	$(INTERPRETER) -m venv .venv
+	cp .env.example .env
+
+install:
+	$(PYTHON) -m pip install -r requirements.txt
+
+data: ## download the mnist data
+	$(PYTHON) -m $(APP_NAME) data:download 
+
+run: ## run the pipeline (train)
+	$(PYTHON) -m $(APP_NAME) pipeline:train 
+
+serve: ## start fastapi uvicorn server
+	$(PYTHON) -m $(APP_NAME) app:serve
+
+docs: ## serve the mdbook docs directory
+	mdbook serve docs
+
+test: ## run pytest tests
+	$(PYTHON) -m pytest
+
+test-watch: ## run pytest on .py changes
+	find . -iname "*.py" | entr -c $(PYTHON) -m pytest
+
+help: ## display this help message
+	@echo "available commands:"
+	@grep -E '^[a-zA-Z_-]+:.*?## .*$$' $(MAKEFILE_LIST) | sort | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36mmake %-30s\033[0m %s\n", $$1, $$2}'