add missing instructions for NL v1.1beta (#635)

missing instructions to run the new method entity sentiment analysis

Author: merla18

language/analysis/README.md

@@ -68,12 +68,15 @@ java -cp target/language-entities-1.0-jar-with-dependencies.jar \
     "The quick brown fox jumped over the lazy dog."
 ```
 
-Analyze sentiment Beta
+Analyze sentiment with Beta Languages such as German
 ```
 java -cp target/language-entities-1.0-jar-with-dependencies.jar \
   com.google.cloud.language.samples.AnalyzeBeta sentiment "Ich habe eine wundervolle Zeit." "DE"
 ```
-
+Analyze entity sentiment - Beta
+```
+java -cp target/language-entities-1.0-jar-with-dependencies.jar     com.google.cloud.language.samples.AnalyzeBeta  entities-sentiment     "The quick brown fox jumped over the lazy dog."
+```
 
 Included with the sample are `demo.sh` and `demo.bat` which show additional
 examples of usage.