action: only trigger action when push to master

wangnuannuan · wangnuannuan · commit 9f03b02c6080 · 2021-09-24T11:36:15.000+08:00
Signed-off-by: Jingru Wang &lt;jingru@synopsys.com&gt;
diff --git a/.github/workflows/doc-build.yml b/.github/workflows/doc-build.yml
@@ -4,7 +4,6 @@ on:
   push:
     branches:
       - master
-  pull_request:
     paths:
     - 'doc/**'
     - '**.rst'
