docs: update in the .env file

docs/Plugins/gitextractor.md

diff --git a/docs/Plugins/gitextractor.md b/docs/Plugins/gitextractor.md
index bed19fb..b4e4a20 100644
--- a/docs/Plugins/gitextractor.md
+++ b/docs/Plugins/gitextractor.md
@@ -15,7 +15,7 @@
    NOTE: you can run only one issue collection stage as described in the Github Plugin README.
 3. Use the [RefDiff](./refdiff.md) plugin to calculate version diff, which will be stored in `refs_commits` table.
 
-Note: If you do not want to collect commit files, you can bypass this step by setting the SKIP_COMMIT_FILES=true in environment variable or .env file. This will prevent the plugin from collecting commit file data.
+Note: If you do not want to collect commit files, you can bypass this step by setting the SKIP_COMMIT_FILES=true in the .env file. This will prevent the plugin from collecting commit file data.
 
 ## Sample Request
 

docs/Troubleshooting/MySqlIssue.md

diff --git a/docs/Troubleshooting/MySqlIssue.md b/docs/Troubleshooting/MySqlIssue.md
index 9984c9b..c05dadf 100644
--- a/docs/Troubleshooting/MySqlIssue.md
+++ b/docs/Troubleshooting/MySqlIssue.md
@@ -108,4 +108,4 @@
     1. The time to collect Git data is too long
     2. Errors occurred while writing data to the DevLake database
    
-To address this, you can bypass this step by setting the SKIP_COMMIT_FILES=true in environment variable or .env file.
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+To address this, you can bypass this step by setting the SKIP_COMMIT_FILES=true in the .env file.
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