fixing typos (#22)

* fixing typos

docs/contribute.md

@@ -36,8 +36,7 @@ isort --profile black -l 90 timebasedcv tests
 black --target-version py38 --line-length 90 timebasedcv tests
 ```
 
-
-As part of the checks on pull requests, it is checked whether the code follows those standards. To ensure that the standard is met, it is recommanded to install [pre-commit hooks](https://pre-commit.com/):
+As part of the checks on pull requests, it is checked whether the code follows those standards. To ensure that the standard is met, it is recommended to install [pre-commit hooks](https://pre-commit.com/):
 
 ```bash
 python -m pip install pre-commit

timebasedcv/timebasedsplit.py

@@ -256,7 +256,7 @@ def split(self: Self, *args: PS.args, **kwargs: PS.kwargs):
 
 class TimeBasedSplit(_CoreTimeBasedSplit):
     """
-    Class that generates splits based on time values, indepedently from the number of
+    Class that generates splits based on time values, independently from the number of
     samples in each split.
 
     Arguments:
@@ -517,7 +517,7 @@ def __init__(
 class TimeBasedCVSplitter(TimeBasedSplit):
     """
     The TimeBasedCVSplitter class conforms with scikit-learn CV Splitters API
-    and generates splits based on time values, indepedently from the number
+    and generates splits based on time values, independently from the number
     of samples in each split.
 
     In order to achive such behaviour we include the arguments of