Improve docs

README.md

@@ -10,7 +10,10 @@ This plugin adds a fully featured grammar and spell checker for SiYuan, powered
 4. Right-click over an underlined word (or click the Menu keyboard button), hover on "Plugin", then... 
    - Click the error message to get a detailed explanation of the error
    - Click "Add to dictionary" to permanently ignore the error
-   - Click any of the corrections to apply them 
+   - Click any of the corrections to apply them
+
+> If, at any point, the underlines are not displayed correctly under the words, click on the currently active tab in
+SiYuan's tab selector or Document Tree, this will trigger a refresh of the underlines.
 
 ## ☑️ Features
 - [x] Spell checker

public/i18n/en_US.json

@@ -50,11 +50,11 @@
     },
     "offline": {
       "title": "Offline mode",
-      "description": "If enabled, the plugin will use a local spell checker, which is faster and more privacy friendly, but doesn't provide advanced grammar checking"
+      "description": "If enabled, the plugin will use a local spell checker, which is more privacy friendly and works without internet, but doesn't provide advanced grammar checking and may slow SiYuan down when a large note is being loaded."
     },
     "offlineDicts": {
       "title": "Offline dictionaries",
-      "description": "Comma-separated list of dictionaries used for offline spell checking. <a href='https://github.com/wooorm/dictionaries/tree/main/dictionaries'>Available options</a>. Example: <code>en,it</code>"
+      "description": "Comma-separated list of dictionaries used for offline spell checking. <a href='https://github.com/wooorm/dictionaries/tree/main/dictionaries'>Available options</a>. Example: <code>en,it</code><br>Set your primary language as first, and don't include unneeded languages, as they will only use more resources."
     }
   },
   "errors": {