Merge pull request #2301 from x448/patch-1

Update ch01-01-installation.md to require TLS 1.2

Author: steveklabnik

ci/dictionary.txt

@@ -198,6 +198,7 @@ Hoare
 Hola
 homogenous
 html
+https
 hyperoptimize
 hypotheticals
 Iceburgh
@@ -357,6 +358,7 @@ PrimaryColor
 println
 priv
 proc
+proto
 pthreads
 pushups
 QuitMessage
@@ -476,6 +478,7 @@ timestamp
 Tiếng
 timeline
 tlborm
+tlsv
 TODO
 TokenStream
 toml

src/ch01-01-installation.md

@@ -28,7 +28,7 @@ using these steps should work as expected with the content of this book.
 If you’re using Linux or macOS, open a terminal and enter the following command:
 
 ```text
-$ curl https://sh.rustup.rs -sSf | sh
+$ curl --proto '=https' --tlsv1.2 https://sh.rustup.rs -sSf | sh
 ```
 
 The command downloads a script and starts the installation of the `rustup`