message: Fix npm  badges in text-document package readme
diff: # Text Document implementation for a LSP Node server
  -[![NPM Version](https://img.shields.io/npm/v/vscode-languageserver-textDocument.svg)](https://npmjs.org/package/vscode-languageserver-textDocument)
  -[![NPM Downloads](https://img.shields.io/npm/dm/vscode-languageserver-textDocument.svg)](https://npmjs.org/package/vscode-languageserver-textDocument)
  +[![NPM Version](https://img.shields.io/npm/v/vscode-languageserver-textdocument.svg)](https://npmjs.org/package/vscode-languageserver-textdocument)
  +[![NPM Downloads](https://img.shields.io/npm/dm/vscode-languageserver-textdocument.svg)](https://npmjs.org/package/vscode-languageserver-textdocument)
  Npm module containing a simple text document implementation for [Node.js](https://nodejs.org/) language server
  