fix README

Author: paultag

Makefile

@@ -47,10 +47,10 @@ sha256sum $(BUILDDIR)/$(NAME)-$(1) > $(BUILDDIR)/$(NAME)-$(1).sha256;
 echo -e "### $(1)\n\n" >> $(BUILDDIR)/README.md;
 echo -e "\`\`\`console" >> $(BUILDDIR)/README.md;
 echo -e "# Export the sha256sum for verification." >> $(BUILDDIR)/README.md;
-echo -e "$$ export ZOO_CLI_SHA256=\"`cat $(BUILDDIR)/$(NAME)-$(1).sha256 | awk '{print $$1}'`\"\n\n" >> $(BUILDDIR)/README.md;
+echo -e "$$ export ZOO_MACHINE_API_SHA256=\"`cat $(BUILDDIR)/$(NAME)-$(1).sha256 | awk '{print $$1}'`\"\n\n" >> $(BUILDDIR)/README.md;
 echo -e "# Download and check the sha256sum." >> $(BUILDDIR)/README.md;
 echo -e "$$ curl -fSL \"https://dl.zoo.dev/releases/machine-api/v$(VERSION)/$(NAME)-$(1)\" -o \"/usr/local/bin/$(NAME)\" \\" >> $(BUILDDIR)/README.md;
-echo -e "\t&& echo \"\$${ZOO_CLI_SHA256}  /usr/local/bin/$(NAME)\" | sha256sum -c - \\" >> $(BUILDDIR)/README.md;
+echo -e "\t&& echo \"\$${ZOO_MACHINE_API_SHA256}  /usr/local/bin/$(NAME)\" | sha256sum -c - \\" >> $(BUILDDIR)/README.md;
 echo -e "\t&& chmod a+x \"/usr/local/bin/$(NAME)\"\n\n" >> $(BUILDDIR)/README.md;
 echo -e "$$ echo \"$(NAME) machine-api installed!\"\n" >> $(BUILDDIR)/README.md;
 echo -e "# Run it!" >> $(BUILDDIR)/README.md;