Add example for remote dictionaries (#4039)

* Add example for remote dictionaries
* Remove copy/paste error
* Fix incorrect dictionary name

Co-authored-by: Jason Dent <Jason3S@users.noreply.github.com>

docs/configuration/index.md

@@ -85,15 +85,20 @@ Or you can specify a path to a config file with the `--config <path>` argument o
 
   ```javascript
   "language": "en",
-  // Dictionaries "spanish", "ruby", and "corp-term" will always be checked.
+  // Dictionaries "spanish", "ruby", and "corp-terms" will always be checked.
   // Including "spanish" in the list of dictionaries means both Spanish and English
   // words will be considered correct.
   "dictionaries": ["spanish", "ruby", "corp-terms", "fonts"],
-  // Define each dictionary.  Relative paths are relative to the config file.
+  // Define each dictionary:
+  //  - Relative paths are relative to the config file.
+  //  - URLs will be retrieved via HTTP GET
   "dictionaryDefinitions": [
       { "name": "spanish", "path": "./spanish-words.txt"},
       { "name": "ruby", "path": "./ruby.txt"},
-      { "name": "company-terms", "path": "./corp-terms.txt"}
+      {
+        "name": "corp-terms",
+        "path": "https://shared-company-repository/cspell-terms.txt"
+      },
   ],
   ```