docs: Removed space in Registering servers in the documentation

Author: laraosan

README.md

@@ -46,7 +46,7 @@ function! s:on_lsp_buffer_enabled() abort
 
     let g:lsp_format_sync_timeout = 1000
     autocmd! BufWritePre *.rs,*.go call execute('LspDocumentFormatSync')
-    
+
     " refer to doc to add more commands
 endfunction