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README.md

@@ -2,11 +2,18 @@
 
 An implementation of a hack assembler in C++.
 
+## Compilation
+
+```bash
+cmake -S . -B build
+cmake --build build
+```
+
 ## Usage
 
 ```bash
 g++ -o hack-assembler main.cpp
-cat <input_file.asm> | ./hack-assembler > <output_file.hack>
+cat <input_file.asm> | ./hack-assembler > ./out/<output_file.hack>
 ```
 
 ## License