Fixed doubled text

README.md

@@ -68,57 +68,3 @@ such as PiDP-11 systems.
 This makes it possible to experience historical plot
 files and legacy Unix systems as they originally behaved.
 
----
-
-## Installation
-
-Choose your platform:
-
-- Raspberry Pi / Linux → raspberrypi.txt
-- macOS → macos.txt
-- Windows (WSL) → windows.txt
-
-These files contain a short and simple installation guide.
-
-More detailed instructions are available in:
-
-- docs/raspberrypi.md
-- docs/macos.md
-- docs/windows-wsl.md
-
----
-
-## Quick test
-
-After installation, run:
-
-    tek4010 -noexit cat test.plt
-
-You should see a graphical display.
-
----
-
-## Examples
-
-Examples and demo files are included in the repository:
-
-- demos/demo.sh
-- pltfiles/
-- ardsfiles/
-
----
-
-## Notes
-
-- This project is distributed as source.
-- Installation is intentionally simple and transparent.
-- If something does not work on a future system,
-  it can be adapted locally.
-
----
-
-## Background
-
-This emulator is designed to support historical
-Unix environments and related hardware projects
-such as PiDP-11 systems.