add vendor and fix doc (#724)

Author: hellertang

tencentcloud/data_source_tc_availability_zones_by_product.go

@@ -1,7 +1,8 @@
 /*
 Use this data source to get the available zones in current region.
-* Must set product param to fetch the product infomations(e.g. => cvm, vpc)
-* By default only `AVAILABLE` zones will be returned, but `UNAVAILABLE` zones can also be fetched when `include_unavailable` is specified.
+Must set product param to fetch the product infomations(e.g. => cvm, vpc)
+By default only `AVAILABLE` zones will be returned, but `UNAVAILABLE` zones can also be fetched when `include_unavailable` is specified.
+
 Example Usage
 
 ```hcl

tencentcloud/provider.go

@@ -34,8 +34,8 @@ Resources List
 
 Provider Data Sources
   tencentcloud_availability_regions
-  tencentcloud_availability_zones
   tencentcloud_availability_zones_by_product
+  tencentcloud_availability_zones
 
 Anti-DDoS(Dayu)
   Data Source