improved documentation

docs/src/Installation.rst

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+Installation
+===============
+
+conda/mamaba
+~~~~~~~~~~~~~~~~
+
+.. note ::
+
+    aare is developing rapidly. Check for the latest release by 
+    using: **conda search aare -c slsdetectorgroup**
+
+
+.. code-block:: bash
+
+    # Install a specific version: 
+    conda install aare=2024.11.11.dev0 -c slsdetectorgroup
+
+
+cmake (development install)
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+.. code-block:: bash
+
+    git clone git@github.com:slsdetectorgroup/aare.git --branch=v1 #or using http...
+    mkdir build
+    cd build
+
+    #configure using cmake
+    cmake ../aare
+
+    #build (replace 4 with the number of threads you want to use)
+    make -j4 
+
+
+    # add the build folder to your PYTHONPATH
+
+cmake install and use in your C++ project
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+.. code-block:: bash
+
+    #build and install aare 
+    git clone git@github.com:slsdetectorgroup/aare.git --branch=v1 #or using http...
+    mkdir build
+    cd build
+
+    #configure using cmake
+    cmake ../aare -DCMAKE_INSTALL_PREFIX=/where/to/put/aare
+
+    #build (replace 4 with the number of threads you want to use)
+    make -j4 
+
+    #install
+    make install
+
+
+    #Now configure your project
+    cmake .. -DCMAKE_PREFIX_PATH=SOME_PATH
+
+
+cmake options
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+For detailed options see the CMakeLists.txt file in the root directory of the project.
+
+.. code-block:: bash
+
+    # usage (or edit with ccmake .)
+    cmake ../aare -DOPTION1=ON -DOPTION2=OFF
+
+
+**AARE_SYSTEM_LIBRARIES "Use system libraries" OFF**
+
+Use system libraries instead of using FetchContent to pull in dependencies. Default option is off.
+
+
+**AARE_PYTHON_BINDINGS "Build python bindings" ON**
+
+Build the Python bindings. Default option is on. 
+
+.. warning ::
+
+    If you have a newer system Python compared to the one in your virtual environment,
+    you might have to pass -DPython_FIND_VIRTUALENV=ONLY to cmake.
+
+**AARE_TESTS "Build tests" OFF**
+
+Build unit tests. Default option is off.
+
+**AARE_EXAMPLES "Build examples" OFF**
+
+**AARE_DOCS "Build documentation" OFF**
+
+Build documentation. Needs doxygen, sphinx and breathe. Default option is off.
+Requires a separate make docs.
+
+**AARE_VERBOSE "Verbose output" OFF**
+
+**AARE_CUSTOM_ASSERT "Use custom assert" OFF**
+
+Enable custom assert macro to check for errors. Default option is off.