[Docs] - id-software/Quake 2 - readme.md [minor tweaks]

readme.md

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+# Quake 2 Engine Source
+
+### Table of Contents (ToC)
+
+* [Overall Consirations](#overall-considerations)
+* [About Quake 2](#about-quake-2)
+* [About Id Software](#about-id-software)
+
+---
+
+#### Overall Considerations
+
+<sub>This is the complete source code for **Quake 2**, version **3.19**, buildable with **visual C++ 6.0**.  The **Linux** version should be buildable, but we haven't
+tested it for the release.</sub>
+
+<sub>The code is all licensed under the terms of the **GPL (gnu public license)**.   You should read the entire license, but the gist of it is that you can do anything you want with the code, including selling your new version.  The catch is that if you distribute new binary versions, you are required to make the entire source code available for free to everyone.</sub>
+
+<sub>The primary intent of this release is for **entertainment** and **educational purposes**, but the **GPL** does allow **commercial exploitation** if you obey the full license.  If you want to do something commercial and you just can't bear 
+to have your **source changes released**, we could still negotiate a separate  license agreement (for **$$$**), but I would encourage you to just live with the 
+**GPL**.</sub>
+
+<sub>All of the **Q2** data files remain **copyrighted** and licensed under the original terms, so you cannot redistribute data from the original game, but if you do a true total conversion, you can create a **standalone game** based on **this code**.</sub>
+
+<sub>Thanks to **Robert Duffy** for doing the grunt work of building this release.</sub>
+
+<sub>**John Carmack**</sub>
+<sub>**Id Software**</sub>
+
+---
+
+## About **John Carmack**
+
+<sub>**John D. Carmack** (born August 20, 1970) is an American **game programmer**, **aerospace** and **virtual reality** engineer. He co-founded **id Software**. Carmack was the lead programmer of the id video games **Commander Keen**, **Wolfenstein 3D**, **Doom**, **Quake**, **Rage** and their sequels. **Carmack** is best known for his innovations in **3D graphics**, such as his famous Carmack's **Reverse algorithm** for **shadow volumes**, and is also a **rocketry enthusiast** and the founder and lead engineer of **Armadillo Aerospace**. In August 2013, Carmack took the position of **CTO** at **Oculus VR**.[3]</sub>
+
+<img src="https://upload.wikimedia.org/wikipedia/commons/d/dc/John_Carmack_GDC_2010.jpg" width="45">
+
+---
+
+## About **Quake 2**
+
+<sub>**Quake II** is a **first-person shooter** video game developed by **id Software** and published by **Activision**. It is not a direct sequel to **Quake**; id decided to revert to an existing trademark when they were unable to agree on a new name that did not violate another company's trademark.[3]</sub>
+
+<sub>The soundtrack for **Quake II** was mainly provided by **Sonic Mayhem**, with some additional tracks by **Bill Brown**; the main theme was also composed by **Bill Brown** and **Rob Zombie**, and one track was by **Jer Sypult**.</sub>
+
+<img src="https://upload.wikimedia.org/wikipedia/en/b/b5/Quake2box.jpg" width="45">
+
+---
+
+## About Id Software
+
+<sub>**id Software** (/ɪd/; see **Company name**) is an **American video game development company** with its **headquarters** in **Richardson, Texas**. The company was founded on **February 1, 1991,** by **four members** of the computer company **Softdisk**: programmers **John Carmack** and **John Romero**, game designer **Tom Hall**, and artist **Adrian Carmack** (no relation to **John Carmack**). Business manager **Jay Wilbur** was also involved.[2]</sub>
+
+<sub>**id made** important technological developments in **video game technologies** for the **PC** (running **MS-DOS** and **Windows**), including work done for the **Wolfenstein**, **Doom**, and **Quake franchises**. id's work was particularly important in **3D computer graphics technology** and in **game engines** that are **heavily** used throughout the **video game industry**.</sub>
+
+<sub>The company was also heavily involved in the creation of the **first-person shooter genre**. **Wolfenstein 3D** is often considered as the first true **FPS**, **Doom** was a game that popularized the genre and PC gaming in general, and **Quake** is the first shooter to have **online multiplayer**, which is a widespread feature used in today's games of the same genre, as well as Id's first true **3D first-person shooter**.</sub>
+
+<sub>On **June 24, 2009, ZeniMax Media** acquired the company.</sub>
+
+<img src="http://retrocdn.net/images/6/6d/IdSoftware_logo.svg" width="45"> <img src="http://tesall.ru/uploads/imgs/pre_1378816134__zenimax_media_inc_logo.jpg" width="75">