Fix smol html malpractices

Signed-off-by: Tristram Gräbener <tristram+git@tristramg.eu>

Author: Tristramg

wasm/html_demo/index.html

@@ -50,16 +50,17 @@
             <h1>libLRS demonstrator</h1>
             <p><a href="https://github.com/OpenRailAssociation/liblrs/">libLRS</a>is a library for modeling Linear
                 Reference
-                Systems. Load your data to start testing.</a></p>
+                Systems. Load your data to start testing.</p>
             <div x-data="$store.lrms">
                 <div x-show="waiting">
                     <h2>Load your LRS file</h2>
-                    <input type="file" @change="load" />
+                    <input type="file" @change="load">
                 </div>
                 <p x-show="loading">Loading in progress</p>
-                <p x-show="error"><b>An error occurred while loading the LRS file: </b><span x-text="error_text" /></p>
+                <p x-show="error"><b>An error occurred while loading the LRS file: </b><span x-text="error_text"></span>
+                </p>
                 <div x-show="loaded && selectedFeature === null">
-                    <input placeholder="filter" x-model="filter"></input>
+                    <input placeholder="filter" x-model="filter">
                     <p>File <span x-text="filename"></span> (<span x-text="Math.round(filesize/1000)"></span>&nbsp;kb)
                     </p>
                     <ul>
@@ -78,10 +79,9 @@ <h3 x-text="selectedFeature.properties.id"></h3>
                             <fieldset>
                                 <legend>Define a segment</legend>
                                 <label for="start">Measurement at start</label>
-                                <input id="start" @change="startPkChange" placeholder="10+120"
-                                    x-model="pkStart"></input>
+                                <input id="start" @change="startPkChange" placeholder="10+120" x-model="pkStart">
                                 <label for="end">Measurement at end</label>
-                                <input id="end" @change="endPkChange" placeholder="12+120" x-model="pkEnd"></input>
+                                <input id="end" @change="endPkChange" placeholder="12+120" x-model="pkEnd">
                             </fieldset>
                         </form>
                         <h4>List of anchors (or milestones)</h4>