A couple of tiny fixes (#205)

* Fix typos in README.md

* Add the appending service transformer so MongoDB data source/sink can be used.

Author: yruslan

README.md

@@ -298,8 +298,8 @@ Any additional properties for the `DataStreamWriter` can be added with the prefi
 | Property Name | Required | Description |
 | :--- | :---: | :--- |
 | `writer.mongodb.uri` | Yes | Output MongoDB URI, e.g. `mongodb://host:port/database.collection`. |
-| `writer.parquet.database` | No | Database name (if not specified as the part of URI). |
-| `writer.parquet.collection` | No | Collection name (if not specified as the part of URI). |
+| `writer.mongodb.database` | No | Database name (if not specified as the part of URI). |
+| `writer.mongodb.collection` | No | Collection name (if not specified as the part of URI). |
 | `writer.common.trigger.type` | No | See [Combination writer properties](#common-writer-properties) |
 | `writer.common.trigger.processing.time` | No | See [Combination writer properties](#common-writer-properties) |
 

hyperdrive-release_spark-2/pom.xml

@@ -74,6 +74,8 @@
                                         <Implementation-Version>${buildNumber}</Implementation-Version>
                                     </manifestEntries>
                                 </transformer>
+                                <!-- This allows to support several library data sources for Spark by referring to them by short name. -->
+                                <transformer implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer"/>
                             </transformers>
                             <filters>
                                 <filter>

hyperdrive-release_spark-3/pom.xml

@@ -74,6 +74,8 @@
                                         <Implementation-Version>${buildNumber}</Implementation-Version>
                                     </manifestEntries>
                                 </transformer>
+                                <!-- This allows to support several library data sources for Spark by referring to them by short name. -->
+                                <transformer implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer"/>
                             </transformers>
                             <filters>
                                 <filter>