Add database type parameter to doc (#121)

* add database type parameter to doc

* comment

Author: RuiyuZhu

Sources/PIRService/PIRService.docc/TestingInstructionsLiveCallerIdLookup.md

@@ -156,7 +156,8 @@ Write the following configuration into a file called `block-config.json`.
   "sharding": {
     "entryCountPerShard": 50000
   },
-  "trialsPerShard": 5
+  "trialsPerShard": 5,
+  "databaseType": "keyword"
 }
 ```
 Now call the utility.
@@ -181,7 +182,8 @@ Now we do basically the same thing for the identity database: write the followin
   "sharding" : {
     "entryCountPerShard" : 5000
   },
-  "trialsPerShard": 5
+  "trialsPerShard": 5,
+  "databaseType": "keyword"
 }
 ```
 

Sources/PIRService/PIRService.docc/TestingInstructionsNEURLFilter.md

@@ -122,7 +122,8 @@ Write the following configuration into a file called `url-config.json`.
   "sharding": {
     "entryCountPerShard": 50000
   },
-  "trialsPerShard": 5
+  "trialsPerShard": 5,
+  "databaseType": "keyword"
 }
 ```
 Now call the utility.