Update README.md

README.md

 # cellframe-dashboard
 CellFrame Dashboard
+
+## Build:
+
+* The project uses Qt environment to build. To build the project, it's enough to exec the following in the project directory:
+  ```
+  git submodule init
+  git submodule update --remote
+  qmake && make && make install 
+  ```
+* Or if you haven't cloned the project yet:
+  ```
+  git clone --recursive <repo>
+  ```
+  before building the project.
+
+## How to install:
+
+### Debian and Ubuntu:
+
+* You need to obtain the package first. Either get it somewhere or create one from scratch by: 
+  ```
+  dpkg-buildpackage -J -uc -us --changes-option=--build=any
+  ```
+* Install it via dpkg
+  ```
+  sudo dpkg -i cellframe-node<version>.deb
+  ```
+  
+### Prerequsites:
+
+To successfully build, you must have following prerequisites preinstalled:
+
+* qt5-qmake
+* cdbs
+* debhelper
+* qtdeclarative5-dev