Add precommit config yaml and fix typos automatically

.codespell_words

@@ -0,0 +1,4 @@
+Parth
+Reacher
+reacher
+theses

.pre-commit-config.yaml

@@ -0,0 +1,40 @@
+# To use:
+#
+#     pre-commit run -a
+#
+# Or:
+#
+#     pre-commit install  # (runs every time you commit in git)
+#
+# To update this file:
+#
+#     pre-commit autoupdate
+#
+# See https://github.com/pre-commit/pre-commit
+
+repos:
+  # Standard hooks
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v4.5.0
+    hooks:
+      - id: check-added-large-files
+      - id: check-case-conflict
+      - id: check-json
+      - id: check-merge-conflict
+      - id: check-symlinks
+      - id: check-toml
+      - id: check-yaml
+      - id: debug-statements
+      - id: destroyed-symlinks
+      - id: detect-private-key
+      - id: end-of-file-fixer
+        exclude: docs/_static/img/
+      - id: mixed-line-ending
+      - id: pretty-format-json
+      - id: trailing-whitespace
+
+  - repo: https://github.com/codespell-project/codespell
+    rev: v2.3.0
+    hooks:
+      - id: codespell
+        args: ['--write-changes', '--ignore-words=.codespell_words']

docs/common/envs.rst

@@ -21,4 +21,4 @@ SimpleMultiObsEnv
 -----------------
 
 .. autoclass:: SimpleMultiObsEnv
-  :members:
+  :members:

docs/modules/a2c.rst

@@ -88,7 +88,7 @@ Train a A2C agent on ``CartPole-v1`` using 4 environments.
         env = make_vec_env("CartPole-v1", n_envs=8, vec_env_cls=SubprocVecEnv)
         model = A2C("MlpPolicy", env, device="cpu")
         model.learn(total_timesteps=25_000)
-  
+
   For more information, see :ref:`Vectorized Environments <vec_env>`, `Issue #1245 <https://github.com/DLR-RM/stable-baselines3/issues/1245>`_ or the `Multiprocessing notebook <https://colab.research.google.com/github/Stable-Baselines-Team/rl-colab-notebooks/blob/sb3/multiprocessing_rl.ipynb>`_.