Update README.md

Author: Adrián García

README.md

@@ -3,7 +3,7 @@
 
 This utility library aims to help Android developers to use the [Google Play In-App Updates API](https://developer.android.com/guide/app-bundle/in-app-updates) in an easy way.
 
-**It's highly encouraged that you first read the [Google Play In-App Updates API](https://developer.android.com/guide/app-bundle/in-app-updates) documentation first before using this library in order to understand the core concepts of the library.**
+**It's highly encouraged that you first read the [Google Play In-App Updates API](https://developer.android.com/guide/app-bundle/in-app-updates) documentation before using this library in order to understand the core concepts of the library.**
 
 ## Installation
 Add the following dependencies to your main `build.gradle`:
@@ -61,4 +61,4 @@ distributed under the License is distributed on an "AS IS" BASIS,
 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
-```
+```