added cpp version, sh version as backup

README

@@ -4,16 +4,23 @@ sfm - Simple File Manager
  
 DESCRIPTION
 -----------
-sfm is a lightweight, terminal-based file manager written entirely in
-POSIX sh. It runs in your terminal with no external dependencies beyond
-standard Unix tools (ls, awk, tput, stty, mv, cp, rm). Designed to be
-fast, flicker-free, and keyboard-driven with a vim-inspired key layout.
+sfm is a lightweight, terminal-based file manager with a vim-inspired
+key layout. The primary version is a fast C++/ncurses binary. A portable
+POSIX sh version (sfm.sh) is also included, requiring only standard Unix
+tools (ls, awk, tput, stty, mv, cp, rm).
  
  
 REQUIREMENTS
 ------------
+C++ version (sfm):
+- ncursesw (libncursesw)
+- A C++17 compiler (g++ or compatible)
+
+Shell version (sfm.sh):
 - A POSIX-compatible shell (sh, dash, bash, etc.)
 - Standard Unix tools: ls, awk, tput, stty, cp, mv, rm, mkdir, touch
+
+Both versions:
 - Optional: wl-copy / xclip / xsel / pbcopy  (for clipboard support)
 - Optional: mpv, vlc, feh, zathura, etc.     (for smart file opening)
 - Optional: readlink                         (for symlink display)
@@ -23,21 +30,23 @@ REQUIREMENTS
 INSTALLATION
 ------------
 Using make (recommended):
- 
+
    make install
- 
-This installs sfm to /usr/local/bin by default. To change the prefix:
- 
+
+This builds the C++ binary and installs both sfm (C++ binary)
+and sfm.sh (shell script) to /usr/local/bin by default.
+To change the prefix:
+
    make install PREFIX=/usr
- 
+
 To uninstall:
- 
+
    make uninstall
- 
-Manual installation:
- 
-   cp sfm /usr/local/bin/sfm
-   chmod +x /usr/local/bin/sfm
+
+Manual installation (shell version only):
+
+   cp sfm.sh /usr/local/bin/sfm.sh
+   chmod +x /usr/local/bin/sfm.sh
  
  
 USAGE