docs: fix ts package name (#457)

Author: nicoloboschi

docs/modules/ragstack-ts/pages/quickstart.adoc

@@ -37,14 +37,14 @@ NPM::
 +
 [source,bash]
 ----
-npx @datastax/ragstack-ai-ts install --use-npm
+npx @datastax/ragstack-ai install --use-npm
 ----
 
 Yarn::
 +
 [source,console]
 ----
-npx @datastax/ragstack-ai-ts install --use-yarn
+npx @datastax/ragstack-ai install --use-yarn
 ----
 ======
 +
@@ -149,12 +149,12 @@ node index.js
 After you have installed the RAGStack package, you can upgrade it to the latest version using the re-running the cli command:
 [source,bash]
 ----
-npx @datastax/ragstack-ai-ts install
+npx @datastax/ragstack-ai install
 ----
 or you can upgrade to a specific version:
 [source,bash]
 ----
-npx @datastax/ragstack-ai-ts install x.y.z
+npx @datastax/ragstack-ai install x.y.z
 ----