Chaning github repository to our gerrit repository

Change-Id: I51ff03d516eecf00a659bade8e15802debfffc5e
diff --git a/.github/ISSUE_TEMPLATE b/.github/ISSUE_TEMPLATE
index 1451b81..adbb65e 100644
--- a/.github/ISSUE_TEMPLATE
+++ b/.github/ISSUE_TEMPLATE
@@ -1 +1 @@
-Before starting a PR, please read the [style guide](https://github.com/gophercloud/gophercloud/blob/master/STYLEGUIDE.md).
+Before starting a PR, please read the [style guide](https://gerrit.mcp.mirantis.net/debian/gophercloud.git/blob/master/STYLEGUIDE.md).