[mlir][tosa] Fix comments format(NFC) (#124520)

This PR corrects the formatting of comments in Markdown. The previous
format was as follows:
https://mlir.llvm.org/docs/Dialects/TOSA/#tosaerf-mlirtosaerfop

![image](https://github.com/user-attachments/assets/1d1d10d5-c960-4724-9fb4-29c17ea39b11)

https://mlir.llvm.org/docs/Dialects/TOSA/#tosarescale-mlirtosarescaleop

![image](https://github.com/user-attachments/assets/fb23cbf6-be10-4a60-8b43-b28dc2db6918)

Author: CoTinker

mlir/include/mlir/Dialect/Tosa/IR/TosaOps.td

@@ -454,7 +454,7 @@ def Tosa_ErfOp : Tosa_ElementwiseUnaryOp<"erf"> {
   let summary = "Computes gauss error function of input";
 
   let description = [{
-    Gauss error function: $ erf(x) = \frac{2}{\sqrt(\pi)} \int_{0}^{x} e^{-t^2} \,dt $
+    Gauss error function: $ erf(x) = \frac{2}{\sqrt(\pi)} \int_{0}^{x} e^{-t^2} \ dt $
     For quantized integer data types, the TABLE operator should be used instead
     with the following definition.  The erf_table has 513 entries each of
     16-bit/8-bit precision and covering the input range -4.0 to +4.0 in steps of 1/64.
@@ -1886,23 +1886,22 @@ def Tosa_RescaleOp: Tosa_Op<"rescale", [Pure,
   let description = [{
     Rescale quantized values into a new domain. Supported rescalings are:
 
-    | Mode                   | Input | Output | Unsigned | Unsigned |
-    |                        |       |        |  input   |  output  |
-    |------------------------|-------|--------|----------|----------|
-    | signed 8 to 8          | int8  | int8   |  false   |  false   |
-    | signed 8 to 16         | int8  | int16  |  false   |  false   |
-    | signed 8 to 32         | int8  | int32  |  false   |  false   |
-    | signed 16 to 8         | int16 | int8   |  false   |  false   |
-    | signed 16 to 16        | int16 | int16  |  false   |  false   |
-    | signed 16 to 32        | int16 | int32  |  false   |  false   |
-    | signed 32 to 8         | int32 | int8   |  false   |  false   |
-    | signed 32 to 16        | int32 | int16  |  false   |  false   |
-    | signed 32 to 32        | int32 | int32  |  false   |  false   |
-    | signed 48 to 8         | int48 | int8   |  false   |  false   |
-    | signed 48 to 16        | int48 | int16  |  false   |  false   |
-    | signed 48 to 32        | int48 | int32  |  false   |  false   |
-    | unsigned 8 to signed 8 | uint8 | int8   |  true    |  false   |
-    | signed 8 to unsigned 8 | int8  | uint8  |  false   |  true    |
+    | Mode                   | Input | Output | Unsigned input | Unsigned output |
+    |------------------------|-------|--------|----------------|-----------------|
+    | signed 8 to 8          | int8  | int8   |  false         |  false          |
+    | signed 8 to 16         | int8  | int16  |  false         |  false          |
+    | signed 8 to 32         | int8  | int32  |  false         |  false          |
+    | signed 16 to 8         | int16 | int8   |  false         |  false          |
+    | signed 16 to 16        | int16 | int16  |  false         |  false          |
+    | signed 16 to 32        | int16 | int32  |  false         |  false          |
+    | signed 32 to 8         | int32 | int8   |  false         |  false          |
+    | signed 32 to 16        | int32 | int16  |  false         |  false          |
+    | signed 32 to 32        | int32 | int32  |  false         |  false          |
+    | signed 48 to 8         | int48 | int8   |  false         |  false          |
+    | signed 48 to 16        | int48 | int16  |  false         |  false          |
+    | signed 48 to 32        | int48 | int32  |  false         |  false          |
+    | unsigned 8 to signed 8 | uint8 | int8   |  true          |  false          |
+    | signed 8 to unsigned 8 | int8  | uint8  |  false         |  true           |
   }];
 
   let arguments = (ins