Gopls fixed. Root dir was causing problem (#289)

lua/lsp/go-ls.lua

@@ -1,4 +1,7 @@
 require'lspconfig'.gopls.setup{
     cmd = {DATA_PATH .. "/lspinstall/go/gopls"},
+    settings = {gopls = {analyses = {unusedparams = true}, staticcheck = true}},
+    root_dir = require'lspconfig'.util.root_pattern(".git","go.mod","."),
+    init_options = {usePlaceholders = true, completeUnimported = true},
     on_attach = require'lsp'.common_on_attach
 }