upd readme requirements

README.md

@@ -51,7 +51,7 @@ python3 -m venv .venv
 source .venv/bin/activate
 
 # 3. Install GUI and serial dependencies
-pip install FreeSimpleGUI pyserial
+pip install -r requirements.txt
 
 # 4. Install laser_control as an editable package
 #    (required for imports to work in any subdirectory)
@@ -61,8 +61,6 @@ pip install -e .
 pip install pytest
 ```
 
-> **Note:** Steps 3–5 can be run via the existing `deploy` script (steps 1–3),
-> then manually run `pip install -e . && pip install pytest` once inside the venv.
 
 ### Every subsequent session
 

requirements.txt

@@ -0,0 +1,7 @@
+FreeSimpleGUI==5.2.0.post1
+iniconfig==2.3.0
+packaging==26.0
+pluggy==1.6.0
+Pygments==2.19.2
+pyserial==3.5
+pytest==9.0.2