Fix typos

Author: AB-xdev

CONTRIBUTING.md

@@ -37,7 +37,7 @@ You should have the following things installed:
 
 <i>See also [JetBrains Docs for developing IntelliJ Plugins](https://plugins.jetbrains.com/docs/intellij/developing-plugins.html)</i>
 
-The plugin is built with gradle, but you don't need to install it if you build with the Intellij gradle plugin (check out the [prerequisites](https://plugins.jetbrains.com/docs/intellij/plugin-required-experience.html)). If you don't intend to use the Intellij gradle plugin, you can use native gradle (replace `./gradlew` by `gradle`).
+The plugin is built with gradle, but you don't need to install it if you build with the IntelliJ gradle plugin (check out the [prerequisites](https://plugins.jetbrains.com/docs/intellij/plugin-required-experience.html)). If you don't intend to use the IntelliJ gradle plugin, you can use native gradle (replace `./gradlew` by `gradle`).
 
 Start idea and import the `build.gradle` file with "File > Open". Then in the "Import Project from Gradle" window, make sure you check "Use gradle 'wrapper' task configuration" before clicking "Finish". You now have a gradle wrapper installed (`gradlew`) that you can use on the command line to generate idea folders: