Fix incorrect closing tag

fr-FR/install.html

@@ -184,7 +184,7 @@ <h3>Windows considerations</h3>
       </div>
     </div>
 
-    <h2>Autres méthodes d'installation</h3>
+    <h2>Autres méthodes d'installation</h2>
 
     <div class="row">
       <div class="col-md-12">

it-IT/install.html

@@ -187,7 +187,7 @@ <h3>Considerazioni su Windows</h3>
       </div>
     </div>
 
-    <h2>Altri metodi di installazione</h3>
+    <h2>Altri metodi di installazione</h2>
 
     <div class="row">
       <div class="col-md-12">

ko-KR/install.html

@@ -174,7 +174,7 @@ <h3>윈도 한정</h3>
       </div>
     </div>
 
-    <h2>다른 설치 방법</h3>
+    <h2>다른 설치 방법</h2>
 
     <div class="row">
       <div class="col-md-12">

pl-PL/install.html

@@ -160,7 +160,7 @@ <h3>Dotyczy Windowsa</h3>
       </div>
     </div>
 
-    <h2>Inne metody instalacji</h3>
+    <h2>Inne metody instalacji</h2>
 
     <div class="row">
       <div class="col-md-12">

pt-BR/install.html

@@ -179,7 +179,7 @@ <h3>Considerações no Windows</h3>
       </div>
     </div>
 
-    <h2>Outros métodos de instalação</h3>
+    <h2>Outros métodos de instalação</h2>
 
     <div class="row">
       <div class="col-md-12">

ru-RU/install.html

@@ -181,7 +181,7 @@ <h3>Windows considerations</h3>
       </div>
     </div>
 
-    <h2>Other installation methods</h3>
+    <h2>Other installation methods</h2>
 
     <div class="row">
       <div class="col-md-12">

vi-VN/install.html

@@ -178,7 +178,7 @@ <h3>Đối với Windows</h3>
       </div>
     </div>
 
-    <h2>Cách cài đặt khác</h3>
+    <h2>Cách cài đặt khác</h2>
 
     <div class="row">
       <div class="col-md-12">

zh-CN/install.html

@@ -177,7 +177,7 @@ <h3>Windows 注意事项</h3>
       </div>
     </div>
 
-    <h2>其他安装方法</h3>
+    <h2>其他安装方法</h2>
 
     <div class="row">
       <div class="col-md-12">