diff --git a/README.md b/README.md
index 1414985..66d3c4c 100644
--- a/README.md
+++ b/README.md
@@ -8,8 +8,12 @@
This Webpack loader compiles [Fest](https://github.com/mailru/fest) templates.
-Loader is trying to build dependencies tree by walking through ``
-and `` of template.
+Loader is trying to build dependencies tree by walking through
+``, `` and `` tags of template.
+
+When loader emits warning, that means that XML parser failed to parse a file
+and get dependencies from it. You probably would like to fix file syntax, to
+have complete experience with webpack rebuild on change.
## Install
```bash