doc: update user calls doc

docs/api/runtime-calls.md

@@ -12,7 +12,7 @@ through on-chain governance mechanisms.
 
 ## User calls
 
-There are **52** user calls organized in **17** pallets.
+There are **53** user calls organized in **18** pallets.
 
 ### 2: Scheduler
 
@@ -1453,6 +1453,33 @@ calls: Vec<<T as Config>::Call>
 </details>
 
 
+### 65: Treasury
+
+<details><summary>0: propose_spend(value, beneficiary)</summary>
+<p>
+
+### Index
+
+`0`
+
+### Documentation
+
+Put forward a suggestion for spending. A deposit proportional to the value
+is reserved and slashed if the proposal is rejected. It is returned once the
+proposal is awarded.
+
+
+### Types of parameters
+
+```rust
+value: BalanceOf<T, I>,
+beneficiary: <T::Lookup as StaticLookup>::Source
+```
+
+</p>
+</details>
+
+
 
 ## Root calls
 

xtask/src/gen_calls_doc.rs

@@ -66,6 +66,7 @@ impl CallCategory {
             }
             ("SmithsCollective", "set_members" | "disapprove_proposal") => Self::Root,
             ("Utility", "dispatch_as") => Self::Root,
+            ("Treasury", "approve_proposal" | "reject_proposal") => Self::OtherOrigin,
             _ => Self::User,
         }
     }