Fix typo in main doc page (#221)

Author: deejay1

Diff for: docs/modules/ROOT/pages/index.adoc

@@ -1,7 +1,7 @@
 [[micrometer-docs-generator-overview]]
 = Overview
 
-By using the https://github.com/micrometer-metrics/micrometer-docs-generator[Micrometer Docs Generator] project and by implementing the `ObservationDocumentation`, `SpanDocumentation` or `MeterDocumentation` interfaces as an `enum`, you can scan your sources and generate Asciidoctor documentation. This lets you maintain the docuemntation for your observability instrumentation in code, and as long as you use the `enum` implementation in your instrumentation, it ensures that your documentation stays in-sync with the instrumentation.
+By using the https://github.com/micrometer-metrics/micrometer-docs-generator[Micrometer Docs Generator] project and by implementing the `ObservationDocumentation`, `SpanDocumentation` or `MeterDocumentation` interfaces as an `enum`, you can scan your sources and generate Asciidoctor documentation. This lets you maintain the documentation for your observability instrumentation in code, and as long as you use the `enum` implementation in your instrumentation, it ensures that your documentation stays in-sync with the instrumentation.
 
 The following example shows a Maven `pom.xml` with the Micrometer Docs Generator project: