Fix requirements file path in installation instructions and mark subproject as dirty

Install_Documentation/README.md

@@ -23,7 +23,7 @@ Ensure you have the following installed on your system:
     cd ~/robot-sensor/Install_Documentation/
     ```
     ```bash
-    pip install -r /requirements.txt
+    pip install -r requirements.txt
     ```
 
 3. **Build the Workspace**:

Install_Documentation/requirements.txt

@@ -6,5 +6,4 @@ trimesh>=4.6.8
 scipy>=1.8.0
 sensor_msgs_py>=4.2.3
 std_msgs>=4.2.3
-tf2_ros>=0.25.12
 rtree>=1.4.0
\ No newline at end of file