README: Update manual build section with compatibility disclaimer

- Remove specific D compiler version requirement note
- Add general warning that distributions may not package compatible
  versions of all dependencies
- Recommend using the Nix build method if issues are encountered

Author: CyberShadow

README.md

@@ -92,12 +92,14 @@ For development, use `nix develop` to enter a shell with all dependencies availa
 
 ### Manual build
 
-1. Install [a D compiler](https://dlang.org/download.html).  
-   Note that you will need a compiler supporting D v2.097 or newer - the compiler in your distribution's repositories might be too old.
+1. Install [a D compiler](https://dlang.org/download.html).
 2. Install [Dub](https://github.com/dlang/dub), if it wasn't included with your D compiler.
 3. Install `libncursesw5-dev`, or your distribution's equivalent package.
 4. Run `dub build -b release`
 
+Note: not all software distributions package a compatible version of all necessary dependencies.
+Success is not guaranteed; please use the Nix build method if you encounter issues.
+
 
 Usage
 -----