Fix missing dialects in docs (#538)

* Fix missing dialects in docs

* TPU dialect

Author: wsmoses

docs/src/api/gpu.md

@@ -0,0 +1,12 @@
+```@meta
+CollapsedDocStrings = true
+```
+
+# GPU Dialect
+
+Refer to the [official documentation](https://mlir.llvm.org/docs/Dialects/GPU/) for
+more details.
+
+```@autodocs
+Modules = [Reactant.MLIR.Dialects.gpu]
+```

docs/src/api/llvm.md

@@ -0,0 +1,12 @@
+```@meta
+CollapsedDocStrings = true
+```
+
+# LLVM Dialect
+
+Refer to the [official documentation](https://mlir.llvm.org/docs/Dialects/LLVM/) for
+more details.
+
+```@autodocs
+Modules = [Reactant.MLIR.Dialects.llvm]
+```

docs/src/api/nvvm.md

@@ -0,0 +1,12 @@
+```@meta
+CollapsedDocStrings = true
+```
+
+# NVVM Dialect
+
+Refer to the [official documentation](https://mlir.llvm.org/docs/Dialects/NVVMDialect/) for
+more details.
+
+```@autodocs
+Modules = [Reactant.MLIR.Dialects.nvvm]
+```

docs/src/api/tpu.md

@@ -0,0 +1,12 @@
+```@meta
+CollapsedDocStrings = true
+```
+
+# TPU Dialect
+
+Refer to the [official documentation](https://github.com/jax-ml/jax/blob/main/jaxlib/mosaic/dialect/tpu/tpu.td) for
+more details.
+
+```@autodocs
+Modules = [Reactant.MLIR.Dialects.tpu]
+```

docs/src/api/triton.md

@@ -0,0 +1,12 @@
+```@meta
+CollapsedDocStrings = true
+```
+
+# Triton Dialect
+
+Refer to the [official documentation](https://triton-lang.org/main/dialects/TritonDialect.html) for
+more details.
+
+```@autodocs
+Modules = [Reactant.MLIR.Dialects.tt]
+```