doc: use invoke-rest-method instead of invoke-web-request

Signed-off-by: Frost Ming <[email protected]>

README.md

@@ -92,7 +92,7 @@ curl -sSL https://pdm-project.org/install-pdm.py | python3 -
 **For Windows**
 
 ```powershell
-(Invoke-WebRequest -Uri https://pdm-project.org/install-pdm.py -UseBasicParsing).Content | py -
+powershell -ExecutionPolicy ByPass -c "irm https://pdm-project.org/install-pdm.py | py -"
 ```
 
 For security reasons, you should verify the checksum of `install-pdm.py`.
@@ -183,7 +183,6 @@ Tell people you are using PDM in your project by including the markdown code in
 
 [![pdm-managed](https://img.shields.io/endpoint?url=https%3A%2F%2Fcdn.jsdelivr.net%2Fgh%2Fpdm-project%2F.github%2Fbadge.json)](https://pdm-project.org)
 
-
 ## Packaging Status
 
 [![Packaging status](https://repology.org/badge/vertical-allrepos/pdm.svg)](https://repology.org/project/pdm/versions)

README_zh.md

@@ -80,7 +80,7 @@ curl -sSL https://pdm-project.org/install-pdm.py | python3 -
 **Windows 安装命令**
 
 ```powershell
-(Invoke-WebRequest -Uri https://pdm-project.org/install-pdm.py -UseBasicParsing).Content | py -
+powershell -ExecutionPolicy ByPass -c "irm https://pdm-project.org/install-pdm.py | py -"
 ```
 
 为安全起见，你应该检查 `install-pdm.py` 文件的正确性。
@@ -166,12 +166,10 @@ pdm add requests flask
 在 README.md 中加入以下 Markdown 代码，向大家展示项目正在使用 PDM:
 
 ```markdown
-[![pdm-managed](https://img.shields.io/endpoint?url=https%3A%2F%2Fcdn.jsdelivr.net%2Fgh%2Fpdm-project%2F.github%2Fbadge.json
-)](https://pdm-project.org)
+[![pdm-managed](https://img.shields.io/endpoint?url=https%3A%2F%2Fcdn.jsdelivr.net%2Fgh%2Fpdm-project%2F.github%2Fbadge.json)](https://pdm-project.org)
 ```
 
-[![pdm-managed](https://img.shields.io/endpoint?url=https%3A%2F%2Fcdn.jsdelivr.net%2Fgh%2Fpdm-project%2F.github%2Fbadge.json
-)](https://pdm-project.org)
+[![pdm-managed](https://img.shields.io/endpoint?url=https%3A%2F%2Fcdn.jsdelivr.net%2Fgh%2Fpdm-project%2F.github%2Fbadge.json)](https://pdm-project.org)
 
 ## 打包状态
 

docs/index.md

@@ -44,11 +44,11 @@ Like Pip, PDM provides an installation script that will install PDM into an isol
 === "Windows"
 
     ```powershell
-    (Invoke-WebRequest -Uri https://pdm-project.org/install-pdm.py -UseBasicParsing).Content | py -
+    powershell -ExecutionPolicy ByPass -c "irm https://pdm-project.org/install-pdm.py | py -"
     ```
 
 !!! note
-    On Windows, if you do not have the optional ``py`` launcher installed (including if you installed Python through the Microsoft store), replace ``py`` with ``python``.
+    On Windows, if you do not have the optional `py` launcher installed (including if you installed Python through the Microsoft store), replace `py` with `python`.
 
 For security reasons, you should verify the checksum of `install-pdm.py`.
 It can be downloaded from [install-pdm.py.sha256](https://pdm-project.org/install-pdm.py.sha256).