update readme

Author: anderspkd

README.md

@@ -11,7 +11,17 @@ field, getting networking to work, or instantiating a PRG or hash function.
 Hopefully, by using SCL, researches (and hobbyists) will find it a lot easier,
 and quicker!, to implement MPC protocols.
 
-## Building SCL
+### Disclaimer
+
+SCL is distributed under the GNU Affero General Public License, for details,
+refer to `LICENSE` or [https://www.gnu.org/licenses/](https://www.gnu.org/licenses/).
+
+This program is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+PARTICULAR PURPOSE.
+
+
+# Building SCL
 
 SCL has no external dependencies, except if you want to build the unittests. In
 that case, [catch2](https://github.com/catchorg/Catch2/tree/v2.x) is required as
@@ -37,14 +47,14 @@ after the build command. By default, headers are install in `usr/local/include`
 and the shared library in `/usr/local/lib`. This location can be controlled by
 setting the `CMAKE_INSTALL_PREFIX` accordingly.
 
-## Using SCL
+# Using SCL
 
 To use SCL, link `libscl.so` when building your program and include the
 `include/` directory to your builds includes. The "examples" directory has some
 simple examples that use scl, as well as a CMake file that can be used as
 inspiration.
 
-## Documentation
+# Documentation
 
 SCL uses Doxygen for documentation. Run `./scripts/build_documentation.sh` to
 generate the documentation. This is placed in the `doc/` folder. Documentation