[clangd] Fix category in clangd-vscode's package.json

Summary:
When opening package.json, vscode shows:

  Use 'Programming  Languages' instead

Replacing "Languages" with this fixes it.

Reviewers: ilya-biryukov

Subscribers: arphaman, ilya-biryukov, ioeric, MaskRay, jkorous, cfe-commits

Differential Revision: https://reviews.llvm.org/D49253

git-svn-id: https://llvm.org/svn/llvm-project/clang-tools-extra/trunk@337697 91177308-0d34-0410-b5e6-96231b3b80d8

clangd/clients/clangd-vscode/package.json

@@ -9,7 +9,7 @@
         "vscode": "^1.18.0"
     },
     "categories": [
-        "Languages",
+        "Programming Languages",
         "Linters",
         "Snippets"
     ],