fix: update makefile variable setting

Signed-off-by: osamamagdy <osamamagdy174@gmail.com>

samples/chaincode/cc-tools-demo/README.md

@@ -157,19 +157,19 @@ include $(TOP)/ecc_go/build.mk
 
 CC_NAME ?= fpc-cc-tools-demo
 
-EGO_CONFIG_FILE ?= $(FPC_PATH)/ecc_go/ccToolsDemoEnclave.json
+EGO_CONFIG_FILE = $(FPC_PATH)/ecc_go/ccToolsDemoEnclave.json
 
 ```
 
 Please make sure that in the file above the variable `TOP` points to the FPC root directory (i.e., `$FPC_PATH`) as it uses the `$FPC_PATH/ecc_go/build.mk` file.
 
-**Note**: In our case, we need to change the build command in the `$FPC_PATH/ecc_go/build.mk` file at the `ecc` target instead of 
+**Note**: In our case, we need to change the build command in the `$FPC_PATH/ecc_go/build.mk` file at the `ecc` target instead of
 
 ```Makefile
 ego-go build $(GOTAGS) -o $(ECC_BINARY) main.go
 ```
 
-to be 
+to be
 
 ```Makefile
 ego-go build $(GOTAGS) -o $(ECC_BINARY)
@@ -190,20 +190,14 @@ Note: this command runs inside the FPC dev environment and not your local host.
 ```
 
 This is because there is a minor difference between the `ChaincodeStubInterface` used in the cc-tools `Mockstub` as it's missing the `PurgePrivateData` method.
-To solve this, run
+To solve this, run the following to download all used packages
 
 ```bash
 cd $FPC_PATH/samples/chaincode/cc-tools-demo
 go mod vendor
 ```
 
-to download all used packages and go to the file of the error to add the missing method there.
-
-```bash
-nano $FPC_PATH/vendor/github.com/hyperledger-labs/cc-tools/mock/mockstub.go
-```
-
-add the following function:
+Edit the file of the error `$FPC_PATH/samples/chaincode/cc-tools-demo/vendor/github.com/hyperledger-labs/cc-tools/mock/mockstub.go` and add the missing method there:
 
 ```go
  	// PurgePrivateData ...

samples/chaincode/cc-tools-demo/testTutorial.sh

@@ -48,14 +48,15 @@ export CC_VER=$(cat "$FPC_PATH/samples/chaincode/cc-tools-demo/mrenclave")
 cd $FPC_PATH/samples/deployment/test-network
 ./installFPC.sh
 sleep 5
+export EXTRA_COMPOSE_FILE="$FPC_PATH/samples/deployment/test-network/cc-tools-demo-compose.yaml"
 make ercc-ecc-start
 sleep 5
 
 # # prepare connections profile
 cd $FPC_PATH/samples/deployment/test-network
 ./update-connection.sh
 
-# # update the connection profile for external clients outside the fpc dev environment
+# update the connection profile for external clients outside the fpc dev environment
 cd $FPC_PATH/samples/deployment/test-network
 ./update-external-connection.sh