feat: added dev container file for fast onboarding

.devcontainer/devcontainer.json

@@ -0,0 +1,44 @@
+// For format details, see https://aka.ms/devcontainer.json. For config options, see the
+// README at: https://github.com/devcontainers/templates/tree/main/src/python
+{
+    "name": "Python 3",
+    // Or use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile
+    "image": "mcr.microsoft.com/devcontainers/python:3.12-bookworm",
+
+    // Features to add to the dev container. More info: https://containers.dev/features.
+    // "features": {},
+
+    // Configure tool-specific properties.
+    "customizations": {
+        // Configure properties specific to VS Code.
+        "vscode": {
+            // Set *default* container specific settings.json values on container create.
+            "settings": {
+                "python.defaultInterpreterPath": "/usr/local/bin/python",
+                "python.linting.enabled": true,
+                "python.linting.pylintEnabled": true,
+                "python.formatting.autopep8Path": "/usr/local/py-utils/bin/autopep8",
+                "python.formatting.blackPath": "/usr/local/py-utils/bin/black",
+                "python.formatting.yapfPath": "/usr/local/py-utils/bin/yapf",
+                "python.linting.banditPath": "/usr/local/py-utils/bin/bandit",
+                "python.linting.flake8Path": "/usr/local/py-utils/bin/flake8",
+                "python.linting.mypyPath": "/usr/local/py-utils/bin/mypy",
+                "python.linting.pycodestylePath": "/usr/local/py-utils/bin/pycodestyle",
+                "python.linting.pydocstylePath": "/usr/local/py-utils/bin/pydocstyle",
+                "python.linting.pylintPath": "/usr/local/py-utils/bin/pylint"
+            },
+
+            // Add the IDs of extensions you want installed when the container is created.
+            "extensions": [
+                "streetsidesoftware.code-spell-checker",
+                "ms-python.python",
+                "ms-python.vscode-pylance"
+            ]
+        }
+    },
+
+    // https://containers.dev/implementors/json_reference/#lifecycle-scripts
+    "postCreateCommand": "pip3 install numpy",
+    "postAttachCommand": "python ngram.py"
+
+}