fix: replace npm with pnpm in docs

This is needed after `pnpm` became the default front-end package manager in Vaadin apps (see vaadin/flow#6966)
vaadin · Dec 27, 2019 · 1ab09b4 · 1ab09b4
1 parent cafa381
commit 1ab09b4
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/documentation/typescript/upgrading-from-vaadin14.asciidoc b/documentation/typescript/upgrading-from-vaadin14.asciidoc
@@ -106,7 +106,7 @@ There are other ways to create UI in TypeScript, but they are not covered in thi
 
 [source,bash]
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-$ npm install --save lit-element
+$ npx pnpm install --save lit-element
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