docs: add environment reloading commands

Author: aminya

README.md

@@ -51,25 +51,33 @@ An example that installs llvm, cmake, ninja, ccache, and vcpkg:
 # windows example (open shell as admin)
 curl -LJO "https://github.com/aminya/setup-cpp/releases/download/v0.5.3/setup_cpp_windows.exe"
 ./setup_cpp_windows --compiler llvm --cmake true --ninja true --ccache true --vcpkg true
+
+RefreshEnv.cmd # reload the environment
 ```
 
 ```ps1
 # linux example
 wget "https://github.com/aminya/setup-cpp/releases/download/v0.5.3/setup_cpp_linux"
 chmod +x setup_cpp_linux
 sudo ./setup_cpp_linux --compiler llvm --cmake true --ninja true --ccache true --vcpkg true
+
+source ~/.profile # reload the environment
 ```
 
 ```ps1
 # mac example
 wget "https://github.com/aminya/setup-cpp/releases/download/v0.5.3/setup_cpp_mac"
 chmod +x setup_cpp_mac
 sudo ./setup_cpp_mac --compiler llvm --cmake true --ninja true --ccache true --vcpkg true
+
+source ~/.profile # reload the environment
 ```
 
 NOTE: In the `compiler` entry, you can specify the version after `-` like `llvm-11.0.0`.
 For the tools, instead of `true` that chooses the default version, you can pass a specific version.
 
+NOTE: you will not need `sudo` if you are already a root user (e.g., in a GitLab runner).
+
 ### With Nodejs
 
 Download the `setup_cpp.js` file form [here](https://github.com/aminya/setup-cpp/releases/download/v0.5.3/setup_cpp.js), and run it with the available options.
@@ -82,13 +90,17 @@ Open the shell as admin, download via `curl`, then install
 # open shell as admin
 curl -LJO "https://github.com/aminya/setup-cpp/releases/download/v0.5.3/setup_cpp.js"
 node ./setup_cpp.js --compiler llvm --cmake true --ninja true --ccache true --vcpkg true
+
+RefreshEnv.cmd # reload the environment
 ```
 
 On Linux or Mac:
 
 ```ps1
 wget "https://github.com/aminya/setup-cpp/releases/download/v0.5.3/setup_cpp.js"
 sudo node ./setup_cpp.js --compiler llvm --cmake true --ninja true --ccache true --vcpkg true
+
+source ~/.profile # reload the environment
 ```
 
 # Inside GitHub Actions
@@ -168,6 +180,9 @@ RUN chmod +x ./setup_cpp_linux
 # install llvm, cmake, ninja, and ccache
 RUN ./setup_cpp_linux --compiler llvm --cmake true --ninja true --ccache true
 
+# reload the environment
+RUN source ~/.profile
+
 ENTRYPOINT [ "/bin/sh" ]
 ```
 

building/docker/debian.dockerfile

@@ -12,4 +12,7 @@ RUN chmod +x ./setup_cpp_linux
 # install llvm, cmake, ninja, and ccache
 RUN ./setup_cpp_linux --compiler llvm --cmake true --ninja true --ccache true
 
+# reload the environment
+CMD source ~/.profile 
+
 ENTRYPOINT [ "/bin/sh" ]

building/docker/debian_node.dockerfile

@@ -8,4 +8,7 @@ WORKDIR "/"
 # run installation
 RUN node ./setup_cpp.js --compiler llvm --cmake true --ninja true --ccache true
 
+# reload the environment
+CMD source ~/.profile 
+
 ENTRYPOINT [ "/bin/sh" ]

building/docker/debian_node_slim.dockerfile

@@ -12,4 +12,7 @@ RUN apt-get install -y --no-install-recommends unzip
 # run installation
 RUN node ./setup_cpp.js --compiler llvm --cmake true --ninja true --ccache true --conan true
 
+# reload the environment
+CMD source ~/.profile 
+
 ENTRYPOINT [ "/bin/sh" ]