fixed docs for ops util command (#51)

Co-authored-by: Marco Zanghì <m.zanghi@pixora.it>

Author: marcozanghi

content/en/docs/cli/assets/_index.md

@@ -13,7 +13,7 @@ upload static assets.
 
 You can upload a folder in this web area with
 
-`ops web upload <folder>`
+`ops util upload <folder>`
 
     Synopsis:
 
@@ -22,7 +22,7 @@ You can upload a folder in this web area with
         Commands to upload and manage static content.
 
         Usage:
-          web upload <folder> [--quiet] [--clean]
+          util upload <folder> [--quiet] [--clean]
 
         Commands:
           upload <folder>  Uploads a folder to the web bucket in OpenServerless.

content/en/docs/tutorial/first-steps/_index.md

@@ -67,10 +67,10 @@ platform is deployed at, but there is an handy command that does it
 automatically for all files in a folder:
 
 ```bash
-ops web upload web/
+ops util upload web/
 ```
 
-Pass to `ops web upload` the path to folder where the index.html is
+Pass to `ops util upload` the path to folder where the index.html is
 stored in (the `web` folder) and visit again `<apihost>`.
 
 Now you should see the new index page:

content/en/docs/tutorial/form-validation/_index.md

@@ -140,7 +140,7 @@ couple of attributes to the form:
 
 Upload the web folder again with the new changes:
 
-    ops web upload web/
+    ops util upload web/
 
 Now if you go to the contact form page the send button should work. It
 will invoke the submit action which in turn will return some html.

content/en/docs/tutorial/notify-message/_index.md

@@ -144,7 +144,7 @@ And update the `index.html`:
                 enctype="application/x-www-form-urlencoded"> <-- new
 ```
 
-Don’t forget to re-upload the web folder with `ops web upload web/`.
+Don’t forget to re-upload the web folder with `ops util upload web/`.
 
 Now try to fill out the form again and press send! It will execute the
 sequence and you will receive the message from your Slack App.