Add sample tompl file to root of repo

common/config/config_test.go

@@ -258,3 +258,11 @@ DUPLICATE = 200
 		assert.Check(t, err != nil, "in %q", tc.name)
 	}
 }
+
+func TestCanParseExampleConfig(t *testing.T) {
+	exampleConfig := "../../example-world.toml"
+	cfg, err := LoadConfig(exampleConfig)
+	assert.NilError(t, err)
+	assert.Equal(t, "my-world-1", cfg.DockerEnv["CARDINAL_NAMESPACE"])
+	assert.Equal(t, "world-engine", cfg.DockerEnv["CHAIN_ID"])
+}

example-world.toml

@@ -0,0 +1,17 @@
+# By default, the root cardinal directory is the location of this config file. The root
+# directory can be changed by uncommenting this line:
+# root_dir="/path/to/cardinal/"
+
+[cardinal]
+CARDINAL_NAMESPACE="my-world-1"
+
+[evm]
+# this value must come from the celestia client. https://docs.celestia.org/developers/node-tutorial#auth-token
+DA_AUTH_TOKEN=""
+DA_BASE_URL="http://celestia-devnet:26658"
+DA_NAMESPACE_ID="67480c4a88c4d12935d4"
+CHAIN_ID="world-engine"
+ # this is a test mnemonic and should not be used in production. 
+KEY_MNEMONIC="enact adjust liberty squirrel bulk ticket invest tissue antique window thank slam unknown fury script among bread social switch glide wool clog flag enroll"
+FAUCET_ADDR="xyzzy"
+BLOCK_TIME=-1