feat: adds hidi as a converter (#693)

Signed-off-by: Vincent Biret <vincentbiret@hotmail.com>

Author: baywet

src/content/tools/hidi.md

@@ -0,0 +1,20 @@
+---
+name: hidi
+description: Convert, validate, transform or filter OpenAPI descriptions effortlessly
+categories:
+  - converters
+  - misc
+languages:
+  csharp: true
+  cli: true
+  docker: true
+repo: https://github.com/microsoft/openapi.net
+link: https://github.com/microsoft/OpenAPI.NET/tree/main/src/Microsoft.OpenApi.Hidi
+oasVersions:
+  v2: true
+  v3: true
+  v3_1: true
+  v3_2: true
+badges:
+  - oas-v32-early
+---