Add info to readme for conan dependency manager (#1516)

Co-authored-by: resttime <[email protected]>

README.md

@@ -79,6 +79,14 @@ You can download and install raylib using the [vcpkg](https://github.com/Microso
 
 *The raylib port in vcpkg is kept up to date by Microsoft team members and community contributors. If the version is out of date, please [create an issue or pull request](https://github.com/Microsoft/vcpkg) on the vcpkg repository.*
 
+#### Installing and building raylib via conan
+
+You can download and install raylib using the [conan](https://conan.io) dependency manager:
+
+      https://docs.conan.io/en/latest/getting_started.html
+
+*The raylib recipe in conan is kept up to date by conan team members and community contributors. If the version is out of date, please [create an issue or pull request](https://github.com/conan-io/conan-center-index) on the conan-center-index repository.*
+
 #### Building raylib on multiple platforms
 
 [raylib Wiki](https://github.com/raysan5/raylib/wiki#development-platforms) contains detailed instructions on building and usage on multiple platforms.