no-ho: add boost.system, boost.filesystem

Author: kassane

README.md

@@ -1,13 +1,49 @@
 # boost-libraries-zig
 
-Boost Libraries using `build.zig`
+[Boost Libraries](https://boost.io) using `build.zig`.
+
+Replacing the [CMake](https://cmake.org/) and [B2](https://www.boost.org/doc/libs/1_86_0/more/getting_started/index.html) build system.
 
 ### Requirements
 
 - [zig](https://ziglang.org/download) v0.13.0 or master
 
 ## How to use
 
+Build libraries
+
+```bash
+# Build no-header-only libraries
+$ zig build -Doptimize=<Debug|ReleaseSafe|ReleaseFast|ReleaseSmall> -Dtarget=<triple-target> --summary <all|new> -Dcontext -Djson -Dsystem -Dcontainer -Dcobalt -Dfilesystem -Dheaders-only=false
+```
+
+#### Helper
+
+```bash
+Project-Specific Options:
+  -Dtarget=[string]            The CPU architecture, OS, and ABI to build for
+  -Dcpu=[string]               Target CPU features to add or subtract
+  -Ddynamic-linker=[string]    Path to interpreter on the target system
+  -Doptimize=[enum]            Prioritize performance, safety, or binary size
+                                 Supported Values:
+                                   Debug
+                                   ReleaseSafe
+                                   ReleaseFast
+                                   ReleaseSmall
+  -Dheaders-only=[bool]        Use headers-only libraries (default: true)
+  -Dcobalt=[bool]              Build cobalt library (default: false)
+  -Dcontext=[bool]             Build context library (default: false)
+  -Djson=[bool]                Build json library (default: false)
+  -Dcontainer=[bool]           Build container library (default: false)
+  -Dfilesystem=[bool]          Build filesystem library (default: false)
+  -Dcoroutine2=[bool]          Build coroutine2 library (default: false)
+  -Dsystem=[bool]              Build system library (default: false)
+  -Dshared=[bool]              Build as shared library (default: false)
+```
+
+
+### or use in new zig project
+
 Make directory and init
 
 ```bash