quark docs too long, re-organize into a new section and split

Author: psifertex

docs/dev/archplatform-disassembly.md

@@ -1,5 +1,8 @@
 # Binary Ninja Flags
 
+!!! note
+    This is an older guide covering the fundamentals of Binary Ninja's flag system. For a more recent and comprehensive treatment of flags in the context of building a full architecture plugin, see the [Flags section of the Lifting guide](archplatform-lifting.md#flags).
+
 This guide is broken up into three sections.
 
 - Part 1 covers the basics of how architecture modules and flags interact

docs/dev/archplatform-lifting.md

@@ -132,13 +132,16 @@ nav:
         - Writing Plugins: 'dev/plugins.md'
         - Container Transforms: 'dev/containertransforms.md'
         - Automation: 'dev/batch.md'
-        - BNIL / Architectures:
+        - Architecture / Platform:
+            - Part 1: Disassembly: 'dev/archplatform-disassembly.md'
+            - Part 2: Lifting: 'dev/archplatform-lifting.md'
+            - Part 3: Platform Support: 'dev/archplatform-platform.md'
+            - Flag Guide: 'dev/flags.md'
+        - BNIL:
             - BNIL Guide: Overview: 'dev/bnil-overview.md'
             - BNIL Guide: LLIL: 'dev/bnil-llil.md'
             - BNIL Guide: MLIL: 'dev/bnil-mlil.md'
             - BNIL Guide: HLIL: 'dev/bnil-hlil.md'
-            - Architecture & Platform Guide: 'dev/archplatform.md'
-            - Flag Guide: 'dev/flags.md'
             - Modifying ILs: 'dev/bnil-modifying.md'
         - Types:
             - Applying Annotations: 'dev/annotation.md'