docs update

Author: raidos23

docs/how_to_create_a_bc_plugin.md

@@ -1,3 +1,6 @@
+**BC Plugin Guide**
+BCASL = Before Compilation Action System & Loader.
+
 **Overview**
 A BC plugin (BCASL) is a package placed in `Plugins/` and executed before compilation. It registers automatically, respects execution order (priority, tags, dependencies), and uses `PreCompileContext` to work with the workspace.
 

docs/how_to_create_an_engine.md

@@ -1,3 +1,6 @@
+**PyCompiler_ARK Engine Guide**
+Practical reference for building, packaging, and integrating custom compilation engines.
+
 **Overview**
 A PyCompiler_ARK engine is a Python package placed in `ENGINES/` and auto‑loaded at startup. It registers itself with `@engine_register` and provides a `CompilerEngine` that builds the compile command and, optionally, a dedicated UI tab.