Updated README.md

README.md

@@ -1,2 +1,18 @@
 # Quazip
-Quazip git module for use in DbSoftware (https://github.com/0xFEEDC0DE64/DbSoftware)
+Quazip library mirror on GitHub
+
+## Building from source
+This project can only be built as part of the project structure [DbSoftware](https://github.com/0xFEEDC0DE64/DbSoftware)
+
+```Shell
+git clone https://github.com/0xFEEDC0DE64/DbSoftware.git
+cd DbSoftware
+git submodule update --init --recursive 3rdparty/Quazip
+cd ..
+mkdir build_DbSoftware
+cd build_DbSoftware
+qmake CONFIG+=ccache ../DbSoftware
+make -j$(nproc) sub-libs
+make sub-libs-install_subtargets
+./bin/databasetree
+```