Fix some linting issues (#2046)

docs/reference/gpu_arch/mi250.md

@@ -50,34 +50,42 @@ Figure 1: Structure of a single GCD in the AMD Instinct MI250 accelerator.
 :header-rows: 1
 :name: mi250-perf
 
-* - Computation and Data Type
+*
+  - Computation and Data Type
   - FLOPS/CLOCK/CU
   - Peak TFLOPS
-* - Matrix FP64
+*
+  - Matrix FP64
   - 256
   - 90.5
-* - Vector FP64
+*
+  - Vector FP64
   - 128
   - 45.3
-* - Matrix FP32
+*
+  - Matrix FP32
   - 256
   - 90.5
-* - Packed FP32
+*
+  - Packed FP32
   - 256
   - 90.5
-* - Vector FP32
+*
+  - Vector FP32
   - 128
   - 45.3
-* - Matrix FP16
+*
+  - Matrix FP16
   - 1024
   - 362.1
-* - Matrix BF16
+*
+  - Matrix BF16
   - 1024
   - 362.1
-* - Matrix INT8
+*
+  - Matrix INT8
   - 1024
   - 362.1
-
 ```
 
 {numref}`mi250-perf` summarizes the aggregated peak performance of the AMD