feat(docker): add simple config for trying

For trying the `kickstart.nvim` configuration, a simple Docker blueprint
is implemented.

.dockerignore

@@ -0,0 +1,6 @@
+.git*
+Dockerfile
+.dockerignore
+LICENSE.md
+README.md
+doc/

Dockerfile

@@ -0,0 +1,27 @@
+FROM anatolelucet/neovim:nightly
+
+WORKDIR /root/.config/nvim
+
+# Install dependencies
+RUN apk add --update \
+    bash \
+    curl \
+    wget \
+    gzip \
+    unzip \
+    git \
+    npm \
+    alpine-sdk \
+    openssh-client \
+    python3 \
+    cargo \
+    ripgrep \
+    fd
+
+# Copy files
+RUN mkdir -p /root/.config/nvim
+COPY . /root/.config/nvim
+
+# Install nvim plugins and lsp servers
+RUN nvim --headless "+Lazy! install" +"MasonInstall pyright" +qa
+