message: docs/stability-index: fix a grammar
diff: @@ -442,7 +442,7 @@ Stability: `0`
  ### [techdocs](https://github.com/backstage/backstage/tree/master/plugins/techdocs/)
  -The frontend component of the TechDocs plugin, used to browser technical
  +The frontend component of the TechDocs plugin, used to browse technical
  documentation of entities.
  Stability: `1`
  