docs(readme): add doc for autofix

README.md

@@ -103,6 +103,15 @@ The prompt also provides fuzzy matched suggestions when typing the icon name:
 You can also use the `search` command to call the prompt directly for fuzzy
 search.
 
+### Autofix
+
+`nerdfix` provides some features to autofix obsolete icons:
+
+- The last input is picked if an icon appears twice.
+- Use `--replace FROM,TO` to replace the prefix of an icon name with another,
+  e.g. `nf-mdi-tab` is replaced by `nf-md-tab` when `--replace nf-mdi-,nf-md-`
+  is specified.
+
 ## ⚖️ License
 
 Licensed under either of

cspell.json

@@ -1 +1 @@
-{"version":"0.2","flagWords":[],"language":"en","words":["nerdfix","codepoint","codepoints"]}
+{"flagWords":[],"language":"en","words":["nerdfix","codepoint","codepoints","autofix"],"version":"0.2"}

src/cli.rs

@@ -41,9 +41,9 @@ pub enum Command {
         /// Auto-confirm interactive prompts.
         #[arg(short, long)]
         yes: bool,
-        /// Replace the prefix of a icon with another.
+        /// Replace the prefix of an icon name with another.
         ///
-        /// For example, use `--replace nf-mdi,nf-md` to replace all `nf-mdi*` icons
+        /// For example, use `--replace nf-mdi-,nf-md-` to replace all `nf-mdi*` icons
         /// with the same icons in `nf-md*`.
         #[arg(short, long, value_name(V_REPLACE))]
         replace: Vec<Replace>,