Rename doc subdirectory to docs for higher consistency with OSS standards

CMakeLists.txt

@@ -142,7 +142,7 @@ option(BUILD_DOC "Build documentation for sdbus-c++" ON)
 option(BUILD_DOXYGEN_DOC "Build doxygen documentation for sdbus-c++ API" OFF)
 
 if(BUILD_DOC)
-    add_subdirectory("${CMAKE_SOURCE_DIR}/doc")
+    add_subdirectory("${CMAKE_SOURCE_DIR}/docs")
     install(FILES README README.md NEWS COPYING ChangeLog AUTHORS DESTINATION ${CMAKE_INSTALL_DOCDIR})
 endif()
 

README.md

@@ -52,7 +52,7 @@ Dependencies
 ------------
 
 * `C++17` - the library uses C++17 `std::uncaught_exceptions()` feature. When building sdbus-c++ manually, make sure you use a compiler that supports that feature (gcc >= 6, clang >= 3.7)
-* `libsystemd` - systemd library containing sd-bus implementation. This library is part of systemd. Systemd at least v236 is needed. (Non-systemd environments are also supported, see the [tutorial](doc/using-sdbus-c++.md#solving-libsystemd-dependency) for more information.)
+* `libsystemd` - systemd library containing sd-bus implementation. This library is part of systemd. Systemd at least v236 is needed. (Non-systemd environments are also supported, see the [tutorial](docs/using-sdbus-c++.md#solving-libsystemd-dependency) for more information.)
 * `googletest` - google unit testing framework, only necessary when building tests, will be downloaded and built automatically.
 
 Licensing
@@ -63,10 +63,10 @@ The library is distributed under LGPLv2.1 license.
 References/documentation
 ------------------------
 
-* [D-Bus Specification](https://dbus.freedesktop.org/doc/dbus-specification.html)
+* [D-Bus Specification](https://dbus.freedesktop.org/docs/dbus-specification.html)
 * [sd-bus Overview](http://0pointer.net/blog/the-new-sd-bus-api-of-systemd.html)
-* [Tutorial: Using sdbus-c++](doc/using-sdbus-c++.md)
-* [Systemd and dbus configuration](doc/systemd-dbus-config.md)
+* [Tutorial: Using sdbus-c++](docs/using-sdbus-c++.md)
+* [Systemd and dbus configuration](docs/systemd-dbus-config.md)
 
 Contributing
 ------------