Updated exceptions diagram

web/script_2.js

@@ -132,7 +132,7 @@ const DIAGRAM_8_B =
   "      │    └── ZeroDivisionError  <span class='hljs-comment'># Raised when dividing by zero.</span>\n" +
   "      ├── AttributeError          <span class='hljs-comment'># Raised when an attribute is missing.</span>\n" +
   "      ├── EOFError                <span class='hljs-comment'># Raised by input() when it hits end-of-file condition.</span>\n" +
-  "      ├── LookupError             <span class='hljs-comment'># Raised when a look-up on sequence or dict fails.</span>\n" +
+  "      ├── LookupError             <span class='hljs-comment'># Raised when a look-up on a sequence or dict fails.</span>\n" +
   "      │    ├── IndexError         <span class='hljs-comment'># Raised when a sequence index is out of range.</span>\n" +
   "      │    └── KeyError           <span class='hljs-comment'># Raised when a dictionary key is not found.</span>\n" +
   "      ├── NameError               <span class='hljs-comment'># Raised when a variable name is not found.</span>\n" +