containerized-testing-tool: Minor fixes in Dockerfile, Makefile and README

- Remove the extra step for creating /results in Dockerfile
- Modify Makefile to add build dependency and .PHONY for each target
- Update README.md

Signed-off-by: Ankita Pareek <ankitapareek@microsoft.com>

Author: Ankita13-code

tests/kata-containerized-test-tool/Dockerfile

@@ -10,8 +10,6 @@ RUN tdnf update -y && tdnf install -y \
     iproute \
     && tdnf clean all
 
-RUN mkdir -p /results
-
 # Default environment variables
 ENV ENABLED_TESTS=""
 

tests/kata-containerized-test-tool/Makefile

@@ -1,14 +1,16 @@
-.PHONY: build docker clean
-
 BINARY_NAME=kata-containerized-test-tool
 
+.PHONY: build
 build:
 	go build -o $(BINARY_NAME) cmd/katatest/main.go
 
-docker:
+.PHONY: docker
+docker: build
 	docker build -t kata-test-container .
 
+.PHONY: clean
 clean:
 	rm -f $(BINARY_NAME)
 
+.PHONY: all
 all: clean build docker

tests/kata-containerized-test-tool/README.md

@@ -15,15 +15,7 @@ This tool provides a flexible framework for running tests in both standard conta
 
 ### Build Steps
 
-1. Clone the repository
-
-```
-git clone https://github.com/kata-containers/kata-containers.git
-cd kata-containers/kata-containerized-testing-tool
-go mod tidy
-```
-
-2. Build the binary and the container
+Build the binary and the container
 
 - Using Makefile
 ```
@@ -86,7 +78,7 @@ sudo ctr run \
     yourregistry.azurecr.io/kata-test-container:v1 host-test
 ```
 
-#### UVM
+#### Guest VM
 ```
 sudo ctr run \
     --cni \