Add epf2go example inspecting L3 IP header to acquire the protocol type.

Signed-off-by: David-VTUK <[email protected]>

revert README.org to README.md to retain formatting

Signed-off-by: David-VTUK <[email protected]>

Resize diagram image

Signed-off-by: David-VTUK <[email protected]>

devcontainer-example/README.md

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+# Devcontainer Examples
+
+The following directory includes examples of [Visual Studio Code Devcontainer](https://code.visualstudio.com/docs/devcontainers/containers) configurations for developing ebpf applications.

devcontainer-example/ebpf-and-go/Dockerfile

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+FROM mcr.microsoft.com/devcontainers/go:1.23-bookworm
+
+RUN apt update
+
+RUN apt install -y build-essential
+RUN apt install -y pkg-config
+RUN apt install -y clang
+RUN apt install -y llvm
+RUN apt install -y git
+RUN apt install -y libelf-dev
+RUN apt install -y libpcap-dev
+RUN apt install -y iproute2
+RUN apt install -y iputils-ping
+RUN apt install -y linux-headers-generic
+RUN apt install -y libbpf-dev
+RUN apt install -y linux-libc-dev
+RUN apt install -y cmake
+RUN apt install -y libpcap-dev
+RUN apt install -y libcap-ng-dev
+RUN apt install -y libbfd-dev
+RUN apt install -y gcc-multilib
+RUN apt install -y m4
+RUN ln -sf /usr/include/asm-generic/ /usr/include/asm
+RUN apt install -y libcap-dev
+RUN ln -sf /usr/local/go/bin/go /bin/go
+RUN ln -sf /usr/include/asm-generic/ /usr/include/asm
+
+RUN mkdir /sources/
+WORKDIR /sources/
+RUN git clone --recurse-submodules https://github.com/libbpf/bpftool.git
+RUN make -C bpftool/src/ install
+RUN git clone --recurse-submodules https://github.com/xdp-project/xdp-tools.git
+RUN make -C xdp-tools/ install

devcontainer-example/ebpf-and-go/devcontainer.json

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+{
+	"name": "Go-ebpf-env",
+	"build": {"dockerfile": "Dockerfile"},
+
+	// Configure tool-specific properties.
+	"customizations": {
+		// Configure properties specific to VS Code.
+		"vscode": {
+			"settings": {},
+			"extensions": [
+				"streetsidesoftware.code-spell-checker",
+				"ms-vscode.cpptools-extension-pack",
+				"ms-vscode.cpptools",
+				"nicknickolaev.ebpf-assembly",
+				"golang.Go"
+			]
+		}
+	},
+
+	"runArgs": ["--network=host"],
+	"privileged": true
+}