add Duckduckgo pkg (#1392)

### What problem does this PR solve? #918 ### Type of change - [x] Documentation Update
infiniflow · Jul 8, 2024 · f4674ae · f4674ae
1 parent de61009
commit f4674ae
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diff --git a/requirements.txt b/requirements.txt
@@ -143,4 +143,5 @@ webdriver-manager==4.0.1
 cn2an==0.5.22
 roman-numbers==1.0.2
 word2number==1.1
-markdown==3.6
+markdown==3.6
+duckduckgo_search==6.1.9
diff --git a/requirements_arm.txt b/requirements_arm.txt
@@ -145,3 +145,4 @@ cn2an==0.5.22
 roman-numbers==1.0.2
 word2number==1.1
 markdown==3.6
+duckduckgo_search==6.1.9
diff --git a/requirements_dev.txt b/requirements_dev.txt
@@ -130,3 +130,4 @@ cn2an==0.5.22
 roman-numbers==1.0.2
 word2number==1.1
 markdown==3.6
+duckduckgo_search==6.1.9