docs(readme): update description for alternative package snap-indent

README.md

@@ -19,7 +19,7 @@
   <a href="https://github.com/jimeh/yank-indent/pulls">
     <img src="https://img.shields.io/github/issues-pr-raw/jimeh/yank-indent.svg?style=flat&logo=github&logoColor=white" alt="GitHub pull requests">
   </a>
-  <a href="https://github.com/jimeh/yank-indent/blob/master/LICENSE">
+  <a href="https://github.com/jimeh/yank-indent/blob/main/LICENSE">
     <img src="https://img.shields.io/github/license/jimeh/yank-indent.svg?style=flat" alt="License Status">
   </a>
 </p>
@@ -84,3 +84,16 @@ Keep in mind that the include/exclude major-mode customizations only affect the
 global mode and which buffers it enables `yank-indent-mode` in. If you
 explicitly enable `yank-indent-mode` in a buffer, it will operate like normal
 regardless of what major-mode the buffer is using.
+
+## Alternative Packages
+
+- [snap-indent](https://github.com/jeffvalk/snap-indent)
+  ([melpa](https://melpa.org/#/snap-indent)): Very similar with the addition of
+  being able to trigger indentation on save, and extra custom formatting
+  functions to run right after indentation.
+- [auto-indent-mode](https://github.com/mattfidler/auto-indent-mode.el)
+  ([melpa](https://melpa.org/#/auto-indent-mode)): Triggers indentation in a
+  whole suite of scenarios, more or less trying to ensure everything is always
+  correctly indented. This also includes indenting any yanked regions. Does not
+  seem to support any thresholds to avoid triggering indentation for large
+  buffers/yanked text.