fix for textual-web links

Author: willmcgugan

docs/stylesheets/custom.css

@@ -99,7 +99,7 @@ td code {
 }
 
 :root {
-  --md-admonition-icon--textualize: url('/images/icons/textualize-logo.svg')
+  --md-admonition-icon--textualize: url('/images/icons/logo light transparent.svg')
 }
 .md-typeset .admonition.textualize,
 .md-typeset details.textualize {

docs/tutorial.md

@@ -40,7 +40,10 @@ The following is *not* a screenshot, but a fully interactive Textual app running
 
     <div class="textual-web-demo" data-app="tutorial"></div>
 
-See [textual-web](https://github.com/Textualize/textual-web) if you are interested in publishing your apps on the web.
+
+!!! tip
+
+    See [textual-web](https://github.com/Textualize/textual-web) if you are interested in publishing your Textual apps on the web.
 
 
 ### Get the code