Clean README.md

README.md

@@ -13,119 +13,3 @@ Table of contents
 
 * [Overview](#libclayer)
 * [Table of contents](#table-of-contents)
-* [API](#api)
-  * [Headers](#headers)
-  * [Definitions](#definitions)
-  * [Global variables](#global-variables)
-* [Configuration](#configuration)
-  * [Non-default options](#non-default-options)
-  * [Default options](#default-options)
-* [Tips](#tips)
-  * [Installation](#installation)
-  * [Development](#development)
-  * [Cross](#cross)
-
-
-
-API
----
-
-### Headers
-
-We use [semantic versioning](https://semver.org) for stable APIs. Stable APIs
-may only change when major version number is increased (or minor while major is
-zero). Work-in-progress APIs can change at any time.
-
-* [ctype.h](/include/ctype.h)
-* [errno.h](/include/errno.h)
-* [inttypes.h](/include/inttypes.h)
-* [setjmp.h](/include/setjmp.h)
-* [stdlib.h](/include/stdlib.h)
-* [string.h](/include/string.h)
-* [sys/types.h](/include/sys/types.h)
-
-
-
-
-Configuration
--------------
-
-Because this library has no external dependencies, we use **autoconf** features
-to control behavior of the library, and packages to choose it's components.
-Configuration options also follow the [semantic versioning](https://semver.org)
-scheme and are split into stable and work-in-progress ones. Here we cover only
-stable options.
-
-### Non-default options
-
-#### Features
-
-* `--enable-checks` - enable usual tests
-* `--enable-checks-all` - enable all checks
-* `--enable-checks-cppcheck` - enable cppcheck
-  Jinja2
-* `--enable-pkg-config[=PATH]` - install pkg-config files
-  [PATH='${libdir}/pkgconfig']
-
-### Default options
-
-#### Features
-
-* `--(enable|disable)-float` - floating-point arithmetic
-* `--(enable|disable)-werror` - fail on warning (`CFLAGS+='-Werror'`)
-
-
-
-Tips
-----
-
-### Installation
-
-```
-./autogen.sh # if present
-./configure
-make
-sudo make install
-sudo ldconfig # on GNU/Linux
-```
-
-This is just a usual library. You can use most of it's APIs in hosted
-environment.
-
-### Development
-
-```
-./autogen.sh # if present
-./configure --enable-checks # or --enable-checks-all, but see prerequisites
-make
-```
-
-You can test with `make check`.
-
-#### See also
-
-* [GitHub Actions](/.github/) for **GNU/Linux** build environment
-* [Cirrus CI](/.cirrus.yml) for **FreeBSD** build environment
-* [sourcehut CI](/.openbsd.yml) for **OpenBSD** build environment
-
-### Cross
-
-Create configuration script with `./autogen.sh` (if present).
-
-Let's assume that your target triplet is `i386-elf`. Configure with
-[cross-compiler](https://wiki.osdev.org/GCC_Cross-Compiler) in `$PATH` to make
-without it in `$PATH`:
-
-```
-./configure \
-  --host='i386-elf' \
-  --disable-shared \
-  --enable-freestanding \
-  CC="$(which i386-elf-gcc)"
-```
-
-The variables include `AR`, `AS`, `CC`, `CCAS`, `LD`, `NM`, `OBJDUMP`, `RANLIB`,
-`STRIP`. See the generated `config.log` for more information.
-
-To install into specific directory use full path: `DESTDIR="$(pwd)/dest" make
-install` instead of `DESTDIR=dest make install`.