diff --git a/README.md b/README.md
index 12392be..fbe0a33 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 
 ## Installation
 
-```
+```bash
 pip install dlib-XX.XX.X-cpXX-cpXX-win_amd64.whl
 ```
 
@@ -14,13 +14,13 @@ The `XX` depends on your situation.
 
 Open file `C:\Users\XXX\AppData\Local\Programs\Python\PythonXX\Lib\site-packages\dlib\_init_.py`.
 
-The `XXX` depends on your situation.
+The `XXX` depends on your situation or the whole filepath may be totally different based on your installation configuration.
 
 ### With CUDA
 
 If you use CUDA, configure the code:
 
-```
+```python
 if "ON" == "ON":
     add_lib_to_dll_path(
         "C:/Program Files/NVIDIA GPU Computing Toolkit/CUDA/vXX.X/lib/x64/cudnn.lib"
@@ -30,13 +30,13 @@ if "ON" == "ON":
     )
 ```
 
-The `XX.X` depends on your situation.
+The `XX.X` depends on your situation or the whole filepath may be totally different based on your installation configuration.
 
 ### Without CUDA
 
-If you don't use CUDA, delete the code:
+If you do not use CUDA, delete the code:
 
-```
+```python
 if "ON" == "ON":
     add_lib_to_dll_path(
         "C:/Program Files/NVIDIA GPU Computing Toolkit/CUDA/vXX.X/lib/x64/cudnn.lib"
@@ -45,3 +45,26 @@ if "ON" == "ON":
         "C:/Program Files/NVIDIA GPU Computing Toolkit/CUDA/vXX.X/lib/x64/cudart.lib"
     )
 ```
+
+Probably. I have not tried it.
+
+---
+
+## Verification
+
+```python
+import dlib
+
+print(dlib.DLIB_USE_CUDA)
+print(dlib.cuda.get_num_devices())
+```
+
+---
+
+## Warnning
+
+It is a matter of luck whether the `.whl` file works on your computer.
+
+If the `.whl` file smooth your installation, you could send a e-mail of gratitude to me. This is enough to delight me not less than a day.
+
+If it does not work, I highly recommend you to download the source code and install by yourself. Besides, you could also send a e-mail full of swear words or other trash to me.
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