Remove shortcuts (#1220)

* Remove shortcuts

* update Readme

Co-authored-by: Kostas Bariotis <konmpar@gmail.com>

README.md

@@ -17,6 +17,8 @@
 
 Go to https://excalidraw.com to start sketching.
 
+Read our [blog](https://blog.excalidraw.com) and follow the [guides](https://howto.excalidraw.com) to learn more about Excalidraw and how to use it effectively.
+
 ## Run the code
 
 ### Code Sandbox

docs/shortcuts.md

@@ -1,45 +0,0 @@
-### General
-
-| Function     | Mac | Other |
-| ------------ | :-: | :---: |
-| Load         |
-| Save         |
-| Export       |
-| Clear canvas |
-
-### Shapes
-
-| Function  |    Mac     |   Other    |
-| --------- | :--------: | :--------: |
-| Selection | `S` or `1` | `S` or `1` |
-| Rectangle | `R` or `2` | `R` or `2` |
-| Diamond   | `D` or `3` | `D` or `3` |
-| Ellipse   | `E` or `4` | `E` or `4` |
-| Arrow     | `A` or `5` | `A` or `5` |
-| Line      | `L` or `6` | `L` or `6` |
-| Text      | `T` or `7` | `T` or `7` |
-| Lock      |    `Q`     |    `Q`     |
-
-### Editor
-
-| Function                      | Mac  |       Other        |
-| ----------------------------- | :--: | :----------------: |
-| Copy                          |  ⌘C  |     `Ctrl + C`     |
-| Paste                         |  ⌘V  |     `Ctrl + V`     |
-| Copy to clipboard as PNG      | ⇧⌥C  | `Alt + Shift + C`  |
-| Copy styles                   | ⇧⌘V  | `Ctrl + Shift + V` |
-| Paste styles                  | ⇧⌘C  | `Ctrl + Shift + C` |
-| Delete                        |  ⌫   |       `Del`        |
-| Send to back                  | ⌥⌘\[ | `Ctrl + Shift + [` |
-| Bring to front                | ⌥⌘\] | `Ctrl + Shift + ]` |
-| Send backwards                | ⌘\[  |     `Ctrl + [`     |
-| Bring forward                 | ⌘\]  |     `Ctrl + ]`     |
-| Duplicate selected element(s) |  ⌘D  |     `Ctrl + D`     |
-
-### View
-
-| Function   | Mac |   Other    |
-| ---------- | :-: | :--------: |
-| Zoom in    | ⌘+  | `Ctrl + +` |
-| Zoom out   | ⌘-  | `Ctrl + -` |
-| Zoom reset | ⌘0  | `Ctrl + 0` |