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diff --git a/src/tools/clippy/src/docs/comparison_to_empty.txt b/src/tools/clippy/src/docs/comparison_to_empty.txt
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+### What it does
+Checks for comparing to an empty slice such as `""` or `[]`,
+and suggests using `.is_empty()` where applicable.
+
+### Why is this bad?
+Some structures can answer `.is_empty()` much faster
+than checking for equality. So it is good to get into the habit of using
+`.is_empty()`, and having it is cheap.
+Besides, it makes the intent clearer than a manual comparison in some contexts.
+
+### Example
+
+```
+if s == "" {
+    ..
+}
+
+if arr == [] {
+    ..
+}
+```
+Use instead:
+```
+if s.is_empty() {
+    ..
+}
+
+if arr.is_empty() {
+    ..
+}
+```
+\ No newline at end of file