fix minor typos

docs/index.md

@@ -4,17 +4,17 @@ Human Phenotype Ontology (HPO) is an ontology developed by the Monarch Initiativ
 It provides a structured representation of abnormal characteristics associated with diseases.
 HPO helps researchers and clinicians share and integrate phenotypic data, making understanding and diagnosing genetic disorders easier.
 It uses a hierarchical organization and semantic relationships between terms and allows for annotation of genes and diseases. HPO is used in multiple diagnosis and variant prioritization tools, aiding healthcare professionals and researchers in identifying and classifying genetic conditions.
-In 2023, HPO has released an international edition which covers different languages such as Chinese, Turkish, Japanese, Spanish and Czech ([more](https://obophenotype.github.io/hpo-translations/)).
-The translations are displayed in the various browsers (e.g. [HPO App](https://hpo.jax.org/app/browse/term/HP:0001166)) and [OLS](https://www.ebi.ac.uk/ols4/ontologies/hp)).
+In 2023, HPO released an international edition which covers different languages such as Chinese, Turkish, Japanese, Spanish and Czech ([more](https://obophenotype.github.io/hpo-translations/)).
+The translations are displayed in the various browsers (e.g. [HPO App](https://hpo.jax.org/app/browse/term/HP:0001166) and [OLS](https://www.ebi.ac.uk/ols4/ontologies/hp)).
 
-This site contains documentation for clinician, researchers, developers, and other users of the [HPO](https://hpo.jax.org/app/).
+This site contains documentation for clinicians, researchers, developers, and other users of the [HPO](https://hpo.jax.org/app/).
 
-### A snapshot of the HPO Hierarchy
+### A snapshot of the HPO hierarchy
 
 ![HPO Hierarchy](img/hpo-hierarchy.png)
 
 ### The HPO App
 
 ![HPO App](img/hpo-app.png)
 
-For more explore the [HPO app](https://hpo.jax.org/app/).
+To learn more, explore the [HPO app](https://hpo.jax.org/app/).