HDDS-5340. Put github PR template of ozone-go (#9)

diff --git a/.github/pull_request_template.md b/.github/pull_request_template.md
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+## What changes were proposed in this pull request ?
+
+(Please fill in changes proposed in this fix)
+
+## What is the link to the Apache JIRA ?
+
+(Please create an issue in ASF JIRA before opening a pull request,
+and you need to set the title of the pull request which starts with
+the corresponding JIRA issue number. (e.g. HDDS-XXXX. Fix a typo in YYY.)
+
+Please replace this section with the link to the Apache JIRA)
+
+## How was this patch tested ?
+
+(Please explain how this patch was tested. Ex: unit tests, manual tests)
+(If this patch involves UI changes, please attach a screen-shot; otherwise, remove this)