fix typos in readme, bump up versions of lucene

README.md

@@ -1,6 +1,6 @@
 # Russian Morphology for Apache Lucene
 
-Russian and English morphology for Java and [Apache Lucene](http://lucene.apache.org) 7.2 framework based on open source dictionary from site [АОТ](http://aot.ru). It use dictionary base morphology with some heuristics for unknown words. It support homonym for example for Russian word "вина" it gives two variants "вино" and "вина".
+Russian and English morphology for Java and [Apache Lucene](http://lucene.apache.org) 8.7 framework based on open source dictionary from site [АОТ](http://aot.ru). It uses dictionary base morphology with some heuristics for unknown words. It supports a homonym for example for a Russian word "вина" it gives two variants "вино" and "вина".
 
 
 ### How to use

pom.xml

@@ -16,9 +16,9 @@
     </scm>
 
     <properties>
-        <lucene.version>8.0.0</lucene.version>
+        <lucene.version>8.7.0</lucene.version>
         <morphology.version>1.5</morphology.version>
-        <junit.version>4.12</junit.version>
+        <junit.version>4.13</junit.version>
     </properties>
 
     <distributionManagement>
@@ -107,7 +107,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
-                <version>3.7.0</version>
+                <version>3.8.1</version>
                 <configuration>
                     <source>1.8</source>
                     <target>1.8</target>

russian/pom.xml

@@ -23,7 +23,7 @@
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-            <version>4.8.2</version>
+            <version>4.13.1</version>
             <scope>test</scope>
         </dependency>