go-clean: add page (#4003)

Signed-off-by: gonejack <igonejack@gmail.com>

pages/common/go-clean.md

@@ -0,0 +1,24 @@
+# go clean
+
+> Tool for removing object files and cached files.
+> More information: <https://golang.org/cmd/go/>.
+
+- Print the remove commands only:
+
+`go clean -n`
+
+- Remove go build cache:
+
+`go clean -cache`
+
+- Remove all test results in the go build cache :
+
+`go clean -testcache`
+
+- Remove go module download cache:
+
+`go clean -modcache`
+
+- Remove all:
+
+`go clean -cache -testcache -modcache -i -r`