Improved glossary (#31004)

docs/sources/getting-started/glossary.md

@@ -20,7 +20,7 @@ This topic lists words and abbreviations that are commonly used in the Grafana d
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     <td style="vertical-align: top">Data source</td>
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-      A file, database, or service providing the data. Grafana supports a several data sources by default, and can be extended to support additional data sources through plugins.
+      A file, database, or service providing the data. Grafana supports several data sources by default, and can be extended to support additional data sources through plugins.
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@@ -32,7 +32,7 @@ This topic lists words and abbreviations that are commonly used in the Grafana d
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     <td style="vertical-align: top">Explore</td>
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-      Explore allows a user to focus on a building a query. User can refine the query to return the expected metrics before building a dashboard. For more information, refer to the <a href="https://grafana.com/docs/grafana/latest/explore">Explore</a> topic.
+      Explore allows a user to focus on building a query. Users can refine the query to return the expected metrics before building a dashboard. For more information, refer to the <a href="https://grafana.com/docs/grafana/latest/explore">Explore</a> topic.
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