Merge pull request #1397 from alicevision/doc/fix_install_coin

[doc] coin libs are required

INSTALL.md

@@ -25,12 +25,15 @@ AliceVision depends on external libraries:
 * [Assimp >= 5.0.0](https://github.com/assimp/assimp)
 * [Boost >= 1.74.0](https://www.boost.org)
 * [Ceres >= 1.10.0](https://github.com/ceres-solver/ceres-solver)
+* CoinUtils >= 2.9.3 use [our fork](https://github.com/alicevision/CoinUtils) with a CMake build system so that it can be easily found
+* Coin-or linear programming (Clp) use [our fork](https://github.com/alicevision/Clp) with a CMake build system
 * [Eigen >= 3.3.4](https://gitlab.com/libeigen/eigen)
 * [Geogram >= 1.7.5](https://gforge.inria.fr/frs/?group_id=5833)
 * [Geogram >= 1.7.5](https://github.com/BrunoLevy/geogram)
 * [Expat >= 2.4.8](https://libexpat.github.io/)
 * [OpenEXR >= 2.5](https://github.com/AcademySoftwareFoundation/openexr)
 * [OpenImageIO >= 2.1.0 (recommended >= 2.4.6)](https://github.com/OpenImageIO/oiio)
+* Open Solver Interface (Osi) >= 0.106.10 use [our fork](https://github.com/alicevision/Osi)) with a CMake build system
 * [zlib](https://www.zlib.net)
 
 Other optional libraries can enable specific features (check "CMake Options" for enabling them):
@@ -46,9 +49,6 @@ Other optional libraries can enable specific features (check "CMake Options" for
 * PCL (Point Cloud Library) >= 1.12.1 for the registration module
 * PopSift (feature extraction on GPU)
 * UncertaintyTE (Uncertainty computation)
-* CoinUtils >= 2.9.3 (if you need to build it use [our fork](https://github.com/alicevision/CoinUtils) with a CMake build system)
-* Coin-or linear programming (Clp) (if you need to build it use [our fork](https://github.com/alicevision/Clp) with a CMake build system)
-* Open Solver Interface (Osi) >= 0.106.10 (if you need to build it use [our fork](https://github.com/alicevision/Osi))
 
 
 AliceVision also depends on some embedded libraries: