Expand README with library features and setup guide

Added detailed library features and installation instructions.

README.md

@@ -13,6 +13,26 @@ The library abstracts common functionality such as trade execution, risk managem
 
 The primary goal is to reduce duplicated implementation, improve maintainability, and provide a modular foundation for building Expert Advisors and trading systems.
 
+---
+## 🧰 What the Library Provides
+
+MT5 Quant Lib provides reusable infrastructure for common Expert Advisor development tasks.
+
+The library includes utilities for:
+
+- **Order management** — opening, modifying, and managing trade orders.
+- **Position sizing** — calculating trade volume based on account risk, stop loss distance, and symbol properties.
+- **Risk management** — applying consistent risk controls across trading systems.
+- **Stop-loss management** — setting fixed, breakeven, trailing, and rule-based stop losses.
+- **Take-profit handling** — supporting fixed targets and trade management rules.
+- **Indicator access** — managing indicator handles and retrieving indicator buffer values.
+- **Signal tracking** — maintaining signal state across symbols, bars, and strategy components.
+- **Time/session filtering** — restricting logic to specific trading windows or market sessions.
+- **Multi-symbol support** — helping Expert Advisors operate consistently across multiple instruments.
+- **Backtesting support** — providing reusable utilities for testing and optimisation workflows.
+
+The aim is to centralise common MT5 infrastructure so that strategy-specific code can stay focused on trading logic rather than repeated platform plumbing.
+
 ---
 
 ## 🎯 Engineering Focus
@@ -59,54 +79,60 @@ The library provides reusable modules including:
 
 ---
 
-## 📈 Library Architecture
+## 📂 Repository Structure
 
-```mermaid
+```text
-flowchart TD
+MT5-Quant-Lib/
 
-A["Trade Execution"]
+├── Indicators/
-
+├── Orders/
-B["Risk Management"]
+├── Utils/
-
+├── BacktestUtils/
-C["Indicator Management"]
+├── trend_following_ea.mq5
-
+└── README.md
-D["Signal Tracking"]
-
-E["Time Filters"]
-
-F["Backtesting Utilities"]
-
-G["Shared Helpers"]
-
-H["MT5 Quant Lib"]
-
-H --> A
-H --> B
-H --> C
-H --> D
-H --> E
-H --> F
-H --> G
 ```
 
-The library separates reusable infrastructure functionality into independent modules that can be combined as needed.
+Main modules:
-
-This approach improves:
-
-- maintainability
-- reusability
-- modularity
-- separation of concerns
-- reduction of duplicated logic
 
+- **Indicators/** — indicator wrappers and helper components
+- **Orders/** — order execution and position management
+- **Utils/** — shared utility classes and helper functions
+- **BacktestUtils/** — optimisation and testing helpers
 
 ---
 
-## 🧩 Example Application
+## 🧩 Example Expert Advisor
 
-The repository also contains a small example Expert Advisor demonstrating how library components can be integrated and used in a practical application.
+The repository includes an example Expert Advisor demonstrating practical use of the library components within a complete multi-symbol trading workflow.
 
-The example exists purely as a usage demonstration and is not the primary purpose of the repository.
+The example EA illustrates how independent library modules can be composed into a larger application while keeping infrastructure concerns separated from strategy logic.
+
+The example demonstrates:
+
+- Multi-symbol processing across configurable instrument lists
+- Event-driven execution using timer-based updates
+- Signal construction using modular indicator components
+- Composition of multiple entry conditions and trade rules
+- Position sizing based on configurable risk settings
+- Trade lifecycle management including entries, exits, and runners
+- Trailing stop and breakeven management
+- Signal memory and state tracking across bars
+- Resource lifecycle management for indicator handles
+- Train/test data separation for optimisation workflows
+- Custom optimisation metrics through `OnTester()`
+
+The example application intentionally keeps strategy logic modular by separating:
+
+- signal generation
+- trade execution
+- risk calculations
+- position management
+- indicator handling
+- state tracking
+
+This demonstrates how reusable infrastructure components can support larger systems without tightly coupling implementation details.
+
+[Example Expert Advisor](trend_following_ea.mq5)
 
 ---
 
@@ -120,16 +146,43 @@ The example exists purely as a usage demonstration and is not the primary purpos
 
 ---
 
-## 🧠 Software Engineering Skills Demonstrated
+## ⚙️ Installation
 
-This project demonstrates:
+Clone the repository:
+
+```bash
+git clone https://github.com/xMattC/mt5-quant-lib.git
+```
+
+Copy the library folder into your MetaTrader 5 `Include` directory:
+
+```text
+C:/Users/<YourUser>/AppData/Roaming/MetaQuotes/Terminal/<Terminal_ID>/MQL5/Include/
+```
+
+The final structure should look similar to:
+
+```text
+MQL5/
+
+└── Include/
+    └── MyLibs/
+        ├── Indicators/
+        ├── Orders/
+        ├── Utils/
+        ├── BacktestUtils/
+        └── ...
+```
+
+The `Terminal_ID` directory is generated automatically by MetaTrader 5 and will vary between installations.
+
+After copying the library, modules can be imported into Expert Advisors using:
+
+```cpp
+#include <MyLibs/Orders/EntryOrders.mqh>
+#include <MyLibs/Orders/AdjustPosition.mqh>
+
+EntryOrders entry_orders;
+AdjustPosition adjust_pos;
+```
 
-- Reusable library design
-- Object-oriented programming
-- Modular architecture
-- Infrastructure abstraction
-- Risk-management implementation
-- Multi-symbol systems
-- Shared runtime development
-- Separation of concerns
-- Platform-specific software engineering