Create guide for uninstalling (#27)

* Create guide for uninstalling

* Update the syntax in README.md

* Update README.md

* Update README.md

* Update README.md

README.md

@@ -41,7 +41,10 @@ $ bash -c "$(curl -fsSL https://raw.githubusercontent.com/lebr0nli/GEP/main/inst
 $ bash -c "$(wget https://raw.githubusercontent.com/lebr0nli/GEP/main/install.sh -O -)"
 ```
 
-3. Enjoy!
+5. Enjoy!
+
+> [!IMPORTANT]
+> After the installation, the script will automatically add `source /path/to/GEP/gdbinit-gep.py` to your `~/.gdbinit` file. Please make sure this line is **always** at the end of your `~/.gdbinit` file during future modifications of your `~/.gdbinit` to avoid some unexpected behaviors.
 
 ## How to update the version of GEP?
 
@@ -53,6 +56,7 @@ You can modify the configuration for history, auto-completion, and other GEP con
 
 You can also add your custom key bindings by modifying `/path/to/GEP/geprc.py`.
 
+> [!NOTE]
 > The `example` subdirectory houses samples and default configurations.
 
 ## The trade-offs
@@ -76,7 +80,7 @@ The GDB Python API event: `gdb.event.before_prompt` may be called only once.
 
 So if you are using a GDB plug-in that is listening on this event, this plug-in will cause some bugs.
 
-> **Note**
+> [!NOTE]
 > As far as I know, pwndbg and gef won't be bothered by this side effect now.
 
 To avoid this, you can change the callback function by adding them to `gdb.prompt_hook`, `gdb.prompt_hook` has almost
@@ -95,11 +99,27 @@ repeatedly executing them.
 
 If you have some user-defined function that has `dont-repeat` property, add your command into the set manually, too.
 
-> **Note**
+> [!NOTE]
 > The set of those user-defined commands are in `geprc.py` and the variable name for it is `DONT_REPEAT`.
 >
 > If you found some builtin commands which should or shouldn't be added by default, let me know on the issue page, thanks!
 
+## Uninstall
+
+If this is your current `~/.gdbinit` file after the installation:
+
+```shell
+source /path/to/GEP/gdbinit-gep.py
+```
+
+Then, you can uninstall this plug-in by:
+
+```shell
+rm -rf /path/to/GEP
+```
+
+And remove `source /path/to/GEP/gdbinit-gep.py` from your `~/.gdbinit`.
+
 ## Credits
 
 Some ideas/code are inspired by [hugsy/gef](https://github.com/hugsy/gef) and [pwndbg/pwndbg](https://github.com/pwndbg/pwndbg).