add info for proxy-support blitz-js/blitz#2264 (#454)

Co-authored-by: Brandon Bayer <[email protected]>

app/pages/docs/blitz-config.mdx

@@ -129,6 +129,8 @@ module.exports = {
 
 ## CLI {#cli}
 
+### Clear Console On Blitz Dev {#clear-console-on-blitz-dev}
+
 When you run `blitz dev`, the console gets cleared. You can disable it by
 setting the `cli.clearConsoleOnBlitzDev` to `false`:
 
@@ -140,6 +142,23 @@ module.exports = {
 }
 ```
 
+### Proxy support {#proxy-support}
+
+Proxy support is enabled automatically for recipe install if either `http_proxy` or `https_proxy`
+environment variable is present. You can also set proxy using:
+
+```js
+module.exports = {
+  cli: {
+    httpProxy: "http://127.0.0.1:8080",
+    httpsProxy: "http://127.0.0.1:8080",
+    noProxy: "localhost",
+  },
+}
+```
+
+Please note that proxy configuration in `blitz.config.js` will override environment proxy configuration.
+
 ## CDN Support with Asset Prefix {#cdn-support-with-asset-prefix}
 
 To set up a [CDN](https://en.wikipedia.org/wiki/Content_delivery_network),

app/pages/docs/get-started.mdx

@@ -9,7 +9,7 @@ You need Node.js 12 or newer
 
 ### Install Blitz {#install-blitz}
 
-Run `npm install -g blitz`
+Run `yarn global add blitz` or `npm install -g blitz --legacy-peer-deps` (legacy-peer-deps is needed because npm totally change behavior of peer deps and some dependencies haven't caught up)
 
 ### Create a New App {#create-a-new-app}