Update usage

README.md

@@ -1,7 +1,7 @@
 # TurtleInTheMaze
 Python Maze-Solving Visualizer built on **MazeSolvingAlgos** module. You can see full demo [here](https://youtu.be/MWLFvymE8tM) and for quick one:
 
-![](speededUpShortDemo.gif)
+![](Imgs/speededUpShortDemo.gif)
 
 ## Prerequisites
 * **TKinter** and its submodule **turtle**:  
@@ -16,5 +16,42 @@ to be able to save `DrawingCanvas` as **image** with **Ghostscript**. You can in
 * **Ghostscript**:  
 to be able to deal with *tkinter canvas postscript* uing **PIL**. Download from [here](https://www.ghostscript.com).
 
-## How to run and use
+## How to run
 After satisfying prerequisites run `runner.py` and enter maze width and height, then feel free to draw with mouse or generate randome maze and solve it with any algorithm (***But** avoid Floyd-Warshall as you can especially for large mazes because it's $O(N^3)$ and may blows up your device ಠ‿ಠ* )
+
+## How to use
+Menubar:
+* **File**:
+    - **New**: to create new maze in the disk. **[Can be accessed via (*Ctrl*+*N*)]**
+    - **Open**: to open existing maze from disk (*as TITMZ file*). **[Can be accessed via (*Ctrl*+*O*)]**
+    - **Save**: to save the current maze in the disk (*as TITMZ file*). **[Can be accessed via (*Ctrl***+*S*)]
+    - **Save as**: to save the current maze in image format (*PNG, JPG, JPEG or BMP*) or maze file (*TITMZ*). **[Can be accessed via (*Ctrl*+*Shift*+*N*)]**
+    - **close**: to close the current working maze. **[Can be accessed via (*Ctrl*+*C*)]**
+    - **Exit**: to exit the window.
+
+*If you have curiosity to know why TITMZ (and I don't think you have); it's for `T`urtle`I`n`T`he`M`a`z`e.*
+
+* **Edit**:
+    - **Reset**: to erase solution from the maze if it's displayed, if not, it will erase the maze itself. **[Can be accessed via (*Ctrl*+*R*)]**
+
+    ![](Imgs/reset.gif) 
+    - **Clear Event Box**: to erase **Event Box** content.
+    - **invert**: to swap **orifice** cells with **block** ones. **[Can be accessed via (*Ctrl*+*I*)]** 
+
+    ![](Imgs/invert.gif)
+
+* **View**:
+    - **Animation and Appearance**:
+        - **Motion**: if checked solution will be visualized frame by frame according to **FPS slider**'s value; if not solution will be displayed at once. **[Can be accessed via (*Ctrl*+*M*)]**
+
+        ![](Imgs/motion.gif)
+        - **Grid View**: if checked gridlines will be displayed indicating cells' exact positions. **[Can be accessed via (*Ctrl*+*G*)]**
+
+        ![](Imgs/gridview.gif) 
+
+    - **Zooming**: 
+      - **Zoom in** to magnify maze **[Can be accessed via (*Ctrl*+*=*)]**
+      - and **Zoom out** for the opposite **[Can be accessed via (*Ctrl*+*-*)]**
+
+    ![](Imgs/zooming.gif) 
+- **Help**: under progress