Fix/load backtests (#345)

* Fix doc page references

* Fix algorithm id reference

* Fix docs description

* Fix return type typehint

* Fix backtest loading

* Fix flake8 warnings

* Fix imports

Author: MDUYN

docusaurus/docs/Contributing Guide/contributing.md

@@ -0,0 +1,52 @@
+---
+sidebar_position: 1
+---
+
+# Installation
+
+Get started with the Investing Algorithm Framework by following these simple installation steps.
+
+## Prerequisites
+
+Before installing the framework, ensure you have:
+
+- **Python 3.10+** installed on your system
+- **pip** (Python package installer)
+- **git** (for cloning repositories)
+
+## Installation Options
+
+### Option 1: Install from PyPI (Recommended)
+
+Install the latest stable version from PyPI:
+
+```bash
+pip install investing-algorithm-framework
+```
+
+### Option 2: Install from Source
+
+For the latest development version, install directly from GitHub:
+
+```bash
+pip install git+https://github.com/coding-kitties/investing-algorithm-framework.git
+```
+
+### Option 3: Development Installation
+
+If you plan to contribute to the framework:
+
+1. **Clone the repository:**
+   ```bash
+   git clone https://github.com/coding-kitties/investing-algorithm-framework.git
+   cd investing-algorithm-framework
+   ```
+
+2. **Install in development mode:**
+   ```bash
+   pip install -e .
+   ```
+
+## Next Steps
+
+Once installation is complete, proceed to [Application Setup](application-setup) to create your first trading application!