docs: Update README according to latest changes

README.md

@@ -1,12 +1,18 @@
-# sfml-test
+# cirno-puzzle
 
 Just playing around with [sfml](https://www.sfml-dev.org/), since I have nothing better to do anyway.
 
-### How to run on Linux: ###
-- Make sure you moved the `/src/font` folder to your build destination.
-- Run `./sfml-test` command from your build destination. 
+### How to build and run on Linux: ###
+- Make sure you have SFML, cmake and any compiler supporting C++17 installed
+- Clone the project and go to the cloned folder:
+```
+git clone https://dev.udongein.xyz/NaiJi/cirno-puzzle
+cd cirno-puzzle/
+```
+- Now make it:
+```
+cmake CMakeLists.txt -B ./build
+cd ./build
+make
+```
 
-### How to build: ###
-- Except any C++ compiler which supports C++17 and higher, you also need to have SFML installed and accessible.
-- Build the project (my sources work with qmake)
-- Move the `/src/font` folder into the folder of your build destination.