Fixed nginx install expectations

Makefile.in

@@ -15,23 +15,23 @@ front:
 	@echo "Installing frontend assets..."
 	@cd frontend && sudo ${MAKE} install
 
-@nginx_dir@sites_available/@nginx_config@: nginx/yacswa.conf
+@nginx_dir@sites-available/@nginx_config@: nginx/yacswa.conf
 	@echo "Installing nginx config..."
-	@sudo mkdir -p @nginx_dir@sites_available
+	@sudo mkdir -p @nginx_dir@sites-available
-	@sudo cp nginx/yacswa.conf @nginx_dir@sites_available/@nginx_config@
+	@sudo cp nginx/yacswa.conf @nginx_dir@sites-available/@nginx_config@
 
-install: @public_dir@ @nginx_dir@sites_available/@nginx_config@
+install: @public_dir@ @nginx_dir@sites-available/@nginx_config@
 
 uninstall:
-	sudo rm @nginx_dir@sites_available/@nginx_config@
+	sudo rm @nginx_dir@sites-available/@nginx_config@
 	sudo rm -rf @public_dir@
 
 up: install @nginx_dir@sites_enabled/@nginx_config@
 	@cd backend && ${MAKE} up
 
 @nginx_dir@sites_enabled/@nginx_config@:
-	@sudo mkdir -p @nginx_dir@sites_enabled
+	@sudo mkdir -p @nginx_dir@sites-enabled
-	@sudo @LN_S@ @nginx_dir@sites_available/@nginx_config@ @nginx_dir@sites_enabled/
+	@sudo @LN_S@ @nginx_dir@sites-available/@nginx_config@ @nginx_dir@sites-enabled/
 
 down:
 	@sudo rm -f @nginx_dir@sites_enabled/@nginx_config@