README.md: reflect current status

README.md

@@ -14,13 +14,11 @@ in the likes of several other entries from the mid 90's.
 The following platforms are either supported or support is expected in
 the future:
 
-- **(supported)** Sony PlayStation 1, using a forked version of
+- Sony PlayStation 1, using a forked version of
 [PSXSDK](https://git.disroot.org/xavi92/psxsdk).
-- *(not supported yet)* Microsoft Win9x, using a `i386-mingw32`
-cross-toolchain and SDL-1.2.
-- *(not supported yet)* Modern Unix-like operating systems such as
-GNU/Linux or *BSD, using SDL-1.2 (if available). Possibly modern
-Microsoft Windows versions, too.
+- Microsoft Win9x, using a `i386-mingw32` cross-toolchain and SDL-1.2.
+- Modern Unix-like operating systems such as GNU/Linux or *BSD, using
+SDL-1.2 (if available). Possibly modern Microsoft Windows versions, too.
 
 ## Design goals
 
@@ -36,8 +34,16 @@ hardware.
 
 ## Building from source
 
-**RTS** can be built using the typical CMake build process. The
-following options can be defined:
+A native version of **RTS** can be built using the typical CMake build
+process:
+
+```sh
+mkdir build
+cd build
+cmake ..
+```
+
+The following options can be otherwise defined:
 
 - `PS1_BUILD`: builds for Sony Playstation 1
 - `HOST_BUILD`: builds for the host operating system using SDL-1.2
@@ -46,9 +52,10 @@ SDL-1.2. A `i386-mingw32` cross-toolchain must be available.
 
 For example, the Sony PlayStation 1 version can be built using:
 
-```
-mkdir build && cd $_
-cmake .. -DPS1_BUILD=1 -DVIDEO_MODE=VMODE_PAL -DCMAKE_EXPORT_COMPILE_COMMANDS=1
+```sh
+mkdir build
+cd build
+cmake .. -DPS1_BUILD=1 -DVIDEO_MODE=VMODE_PAL
 make -j$(nproc --all)
 ```