docs(img-tag): title text should be quoted

source/docs/tag-plugins.md

@@ -190,7 +190,7 @@ To embed an iframe:
 Inserts an image with specified size.
 
 ```
-{% img [class names] /path/to/image [width] [height] "title text 'alt text'" %}
+{% img [class names] /path/to/image [width] [height] '"title text" "alt text"' %}
 ```
 
 ## Link

source/ko/docs/tag-plugins.md

@@ -188,7 +188,7 @@ iframe을 포함시킬 수 있습니다.
 이미지의 사이즈를 지정하여 포함시킬 수 있습니다.
 
 ```
-{% img [class names] /path/to/image [width] [height] [title text [alt text]] %}
+{% img [class names] /path/to/image [width] [height] '"title text" "alt text"' %}
 ```
 
 ## Link

source/pt-br/docs/tag-plugins.md

@@ -191,7 +191,7 @@ Para incorporar um iframe:
 Insere uma imagem com tamanho especificado.
 
 ```
-{% img [class names] /path/to/image [width] [height] [title text [alt text]] %}
+{% img [class names] /path/to/image [width] [height] '"title text" "alt text"' %}
 ```
 
 ## Link

source/ru/docs/tag-plugins.md

@@ -188,7 +188,7 @@ content
 Вставляет картинку с заданными размерами.
 
 ```
-{% img [class names] /path/to/image [width] [height] [title text [alt text]] %}
+{% img [class names] /path/to/image [width] [height] '"title text" "alt text"' %}
 ```
 
 ## Ссылка

source/th/docs/tag-plugins.md

@@ -191,7 +191,7 @@ content
 เสียบรูปภาพที่มีขนาดเฉพาะเข้า:
 
 ```
-{% img [class names] /path/to/image [width] [height] [title text [alt text]] %}
+{% img [class names] /path/to/image [width] [height] '"title text" "alt text"' %}
 ```
 
 ## Link

source/zh-cn/docs/tag-plugins.md

@@ -188,7 +188,7 @@ content
 在文章中插入指定大小的图片。
 
 ```
-{% img [class names] /path/to/image [width] [height] "title text 'alt text'" %}
+{% img [class names] /path/to/image [width] [height] '"title text" "alt text"' %}
 ```
 
 ## Link

source/zh-tw/docs/tag-plugins.md

@@ -184,7 +184,7 @@ content
 在文章中插入指定大小的圖片。
 
 ```
-{% img [class names] /path/to/image [width] [height] [title text [alt text]] %}
+{% img [class names] /path/to/image [width] [height] '"title text" "alt text"' %}
 ```
 
 ## Link