Update README.md, toc

Author: AnastaZIuk

README.md

@@ -8,7 +8,30 @@
 
 # Table of Contents
 
-< TODO >
+1. [Showcase](#showcase)
+2. [Features](#features)
+   - [The Nabla Core Profile](#-the-nabla-core-profile)
+   - [Physical Device Selection and Filtering](#-physical-device-selection-and-filteration)
+   - [SPIR-V and Vulkan as First-Class Citizens](#-spir-v-and-vulkan-as-first-class-citizens)
+   - [Integration of Renderdoc](#-integration-of-renderdoc)
+   - [Nabla Event Handler: Seamless GPU-CPU Synchronization](#-nabla-event-handler-seamless-gpu-cpu-synchronization)
+   - [GPU Object Lifecycle Tracking](#-gpu-object-lifecycle-tracking)
+   - [HLSL2021 Standard Template Library](#-hlsl2021-standard-template-library)
+   - [Full Embrace of Buffer Device Address and Descriptor Indexing](#-full-embrace-of-buffer-device-address-and-descriptor-indexing)
+   - [Minimally Invasive Design](#-minimally-invasive-design)
+   - [Designed for Interoperation](#-designed-for-interoperation)
+   - [Cancellable Future-based Async I/O](#-cancellable-future-based-async-io)
+   - [Data Transfer Utilities](#-data-transfer-utilities)
+   - [Virtual File System](#-virtual-file-system)
+   - [Asset System](#-asset-system)
+   - [Asset Converter (CPU to GPU)](#-asset-converter-cpu-to-gpu)
+   - [Unit-Tested BxDFs for Physically Based Rendering](#-unit-tested-bxdfs-for-physically-based-rendering)
+   - [Property Pools (GPU Entity Component System)](#-in-progress-property-pools-gpu-entity-component-system)
+   - [SPIR-V Introspection and Layout Creation](#-spir-v-introspection-and-layout-creation)
+   - [Nabla Extensions](#-nabla-extensions)
+3. [Coming Soon](#-coming-soon)
+4. [Need Our Expertise?](#-need-our-expertise)
+5. [Join Our Team](#-join-our-team)
 
 # Showcase