fix: render image in absolute path

Author: dandrade-meli

docs/helpers.md

@@ -95,6 +95,7 @@ Only when you set both the `routerMode: 'history'` and `externalLinkTarget: '_se
 
 ### Resizing
 
+
 ```md
 ![logo](https://docsify.js.org/_media/icon.svg ':size=WIDTHxHEIGHT')
 ![logo](https://docsify.js.org/_media/icon.svg ':size=50x100')
@@ -121,6 +122,19 @@ Only when you set both the `routerMode: 'history'` and `externalLinkTarget: '_se
 ![logo](https://docsify.js.org/_media/icon.svg ':id=someCssId')
 ```
 
+### Absolute Path
+
+```md
+
+![logo](:docs/_media/icon.svg 'with :')
+![logo](//docs/_media/icon.svg 'with //')
+
+```
+
+![logo](:docs/_media/icon.svg 'with :')
+
+![logo](//docs/_media/icon.svg 'with //')
+
 ## Customise ID for headings
 
 ```md

src/core/render/compiler/image.js

@@ -3,7 +3,7 @@ import { isAbsolutePath, getPath, getParentPath } from '../../router/util';
 
 export const imageCompiler = ({ renderer, contentBase, router }) =>
   (renderer.image = (href, title, text) => {
-    let url = href;
+    let url = href.replace(/^\/+|^:/, '');
     let attrs = [];
 
     const { str, config } = getAndRemoveConfig(title);