docs: use get.caprover.com for installer across all languages (#253)

Author: githubsaturn

content/en/docs-next/get-started.md

@@ -21,8 +21,7 @@ On the server:
 
 ```bash
 sudo apt update && sudo apt install -y curl
-curl -fsSLo caprover-install.sh \
-  https://raw.githubusercontent.com/caprover/caprover/master/scripts/user/installer/caprover-install.sh
+curl -fsSL https://get.caprover.com -o caprover-install.sh
 sudo bash caprover-install.sh --check
 sudo bash caprover-install.sh
 ```

content/es-ES/docs-next/get-started.md

@@ -21,8 +21,7 @@ Ejecuta estos comandos en el servidor:
 
 ```bash
 sudo apt update && sudo apt install -y curl
-curl -fsSLo caprover-install.sh \
-  https://raw.githubusercontent.com/caprover/caprover/master/scripts/user/installer/caprover-install.sh
+curl -fsSL https://get.caprover.com -o caprover-install.sh
 sudo bash caprover-install.sh --check
 sudo bash caprover-install.sh
 ```

content/zh-CN/docs-next/get-started.md

@@ -21,8 +21,7 @@ slug: /get-started
 
 ```bash
 sudo apt update && sudo apt install -y curl
-curl -fsSLo caprover-install.sh \
-  https://raw.githubusercontent.com/caprover/caprover/master/scripts/user/installer/caprover-install.sh
+curl -fsSL https://get.caprover.com -o caprover-install.sh
 sudo bash caprover-install.sh --check
 sudo bash caprover-install.sh
 ```

scripts/smoke-combined-site.mjs

@@ -144,6 +144,10 @@ try {
     assert(startHtml.includes("caprover-install.sh") &&
       startHtml.includes("/docs/installation/manual"),
       "Getting Started must use the installer and link Manual Setup");
+    assert(startHtml.includes("https://get.caprover.com"),
+      `${locale.code} Getting Started must use the short installer URL`);
+    assert(!startHtml.includes("raw.githubusercontent.com/caprover/caprover/master/scripts/user/installer/caprover-install.sh"),
+      `${locale.code} Getting Started must not use the raw GitHub installer URL`);
     const oldPage = await fetch(origin + locale.pathPrefix +
       "/docs-next/installation/digitalocean");
     assert.equal(oldPage.status, 200);