diff --git a/crates/eww/src/config/inbuilt.rs b/crates/eww/src/config/inbuilt.rs
index ba299395..687fb057 100644
--- a/crates/eww/src/config/inbuilt.rs
+++ b/crates/eww/src/config/inbuilt.rs
@@ -30,7 +30,7 @@ macro_rules! define_builtin_vars {
 }
 
 define_builtin_vars! {
-    // @desc EWW_TEMPS - Heat of the components in Celcius
+    // @desc EWW_TEMPS - Heat of the components in degree Celsius
     // @prop { <name>: temperature }
     "EWW_TEMPS" [2] => || Ok(DynVal::from(get_temperatures())),
 
diff --git a/crates/eww/src/widgets/widget_definitions.rs b/crates/eww/src/widgets/widget_definitions.rs
index 4cfd7621..a90faf89 100644
--- a/crates/eww/src/widgets/widget_definitions.rs
+++ b/crates/eww/src/widgets/widget_definitions.rs
@@ -312,7 +312,8 @@ fn build_gtk_combo_box_text(bargs: &mut BuilderArgs) -> Result<gtk::ComboBoxText
 
 const WIDGET_NAME_EXPANDER: &str = "expander";
 /// @widget expander
-/// @desc A widget that can expand and collapse, showing/hiding it's children.
+/// @desc A widget that can expand and collapse, showing/hiding it's children. Should contain
+/// exactly one child.
 fn build_gtk_expander(bargs: &mut BuilderArgs) -> Result<gtk::Expander> {
     let gtk_widget = gtk::Expander::new(None);
 
diff --git a/docs/src/expression_language.md b/docs/src/expression_language.md
index 15dfc6ed..1c493e01 100644
--- a/docs/src/expression_language.md
+++ b/docs/src/expression_language.md
@@ -40,6 +40,7 @@ Supported currently are the following features:
 - some function calls:
     - `round(number, decimal_digits)`: Round a number to the given amount of decimals
     - `sin(number)`, `cos(number)`, `tan(number)`, `cot(number)`: Calculate the trigonometric value of a given number in **radians**
+    - `min(a, b)`, `max(a, b)`: Get the smaller or bigger number out of two given numbers
     - `degtorad(number)`: Converts a number from degrees to radians
     - `radtodeg(number)`: Converts a number from radians to degrees
     - `replace(string, regex, replacement)`: Replace matches of a given regex in a string