minor symfony#11414 small improvements (OskarStark)

This PR was merged into the 3.4 branch.

Discussion
----------

small improvements

<!--

If your pull request fixes a BUG, use the oldest maintained branch that contains
the bug (see https://symfony.com/roadmap for the list of maintained branches).

If your pull request documents a NEW FEATURE, use the same Symfony branch where
the feature was introduced (and `master` for features of unreleased versions).

-->

Commits
-------

e9cc5c2 small improvements

Author: javiereguiluz

frontend/encore/vuejs.rst

@@ -144,7 +144,7 @@ you can import them with ``require()`` function:
         render() {
             return (
                 <div>
-                    <img src={require("./image.png")} />
+                    <img src={require("./image.png")}/>
                 </div>
             )
         }

setup/symfony_server.rst

@@ -55,7 +55,7 @@ run the Symfony server in the background:
 Enabling TLS
 ------------
 
-Browsing the secure version of your apps locally is important to detect
+Browsing the secure version of your applications locally is important to detect
 problems with mixed content early, and to run libraries that only run in HTTPS.
 Traditionally this has been painful and complicated to set up, but the Symfony
 server automates everything. First, run this command: