chore: update Readme

Author: SolaWing

Readme.md

@@ -98,6 +98,8 @@ if you found find definition or references is not work correctly, just build it
 
 current implementation is basicly work, but may have some rough edges. Please report issue if you have any problem. If you want to help, can check the open issue list. PR is always welcome.
 
+when reporting an issue, you may provide your buildServer.json and run LSP with the environment variable SOURCEKIT_LOGGING=3 to provide detailed logs to help locate the problem.
+
 # Common Issues
 
 * If you use multiple versions of xcode or sourcekit-lsp, and it doesn't work properly, such as Loading the standard library failed, you should check that the build and sourcekit-lsp versions are **consistent**. Usually you can use `xcode-select` to switch toolchains, and use `xcrun sourcekit-lsp` to use the corresponding lsp version.

xcode-build-server

@@ -17,7 +17,7 @@ def show_help():
           SPECIAL ENVIRONMENT VARIABLE:
             SOURCEKIT_LOGGING=3: enable detail debug log
             XBS_LOGPATH: set log path. default is `:stderr`. use `:null` to disable log
-            XBS_FEAT_NEWFILE=1: enable auto new file hack by infer flags from same dir files..
+            XBS_FEAT_NEWFILE=1: enable auto new file hack by infer flags from same dir files.., default true
           """
     )
     exit(0)