mv module integrations docs (#8101)

docs/extras/integrations/providers/git.mdx

@@ -0,0 +1,19 @@
+# Git
+
+>[Git](https://en.wikipedia.org/wiki/Git) is a distributed version control system that tracks changes in any set of computer files, usually used for coordinating work among programmers collaboratively developing source code during software development.
+
+## Installation and Setup
+
+First, you need to install `GitPython` python package.
+
+```bash
+pip install GitPython
+```
+
+## Document Loader
+
+See a [usage example](/docs/modules/data_connection/document_loaders/integrations/git.html).
+
+```python
+from langchain.document_loaders import GitLoader
+```