Add setup and compiler documentation + credits

Author: Blixibon

_config.yml

@@ -38,7 +38,7 @@ plugins:
 
 header_pages:
   - about.markdown
-  - getting-started.markdown
+  - setup.markdown
   - docs.markdown
   - credits.markdown
 

assets/setup/custom-game-config.png

@@ -4,4 +4,52 @@ title: Credits
 permalink: /credits/
 ---
 
-Mapbase's original target audience was singleplayer Half-Life 2 mappers, and many of its features are aimed at augmenting Half-Life 2 mapping in particular.
+Mapbase's most comprehensive list of attributions (and all contributors) can be found in [the main repository's README](https://github.com/mapbase-source/source-sdk-2013/blob/master/README) under the **"EXTERNAL CONTENT USED IN MAPBASE"** section.
+
+This page goes over broader attributions for Mapbase itself, particularly those which may not be listed as external contributors.
+
+---
+
+### Core Team
+
+* **Blixibon** — Original creator and maintainer.
+* **1upD**
+
+### Collaborators
+
+* **Wazanator**
+* **arbabf**
+* **azzy**
+
+---
+
+### Pre-Release Testing Participants
+
+* **JanKaszanka**
+* **Jmp**
+* **Salamancer**
+* **ThatsRidonkulous**
+* **matt71490**
+* **Warkin Volselli**
+* **XBLAH**
+* **krassell**
+* **1upD**
+* **alex_mmc**
+* **Niker107**
+* **WALLe PL**
+* **White_Red_Dragons**
+
+### Pre-Release Code Reviewers
+* **Rara**
+* **1upD**
+* **OzxyBox**
+* **CrAzY**
+
+---
+
+## Special Thanks
+
+* **krassell** — Provided initial insight and suggestions for how Mapbase can augment complex map logic and avoid causing issues.
+* **1upD** — Helped set up the Mapbase repository with Git and guided the best practices for maintaining it.
+* **Valve Modding Community and Map Labs** — Many of Mapbase's early contributors and supporters came from these communities.
+* **EMINOMA** — Supported Mapbase's presence within TF2 and allowed changes from *Team Fortress 2 Classified* to be upstreamed to Mapbase's MP branch.