Remove extra space between quotes

Author: ernilambar

installing.md

@@ -94,7 +94,7 @@ To have this change take effect in your currently active shell, run `source ~/.z
 #### Fish
 
 If you're using the _Fish_ shell, you can download [wp.fish](https://github.com/wp-cli/wp-cli/raw/main/utils/wp.fish) and move it to `~/.config/fish/completions/wp.fish`. 
-Afterwards just type `wp ` and press `TAB`, and fish will automatically source `wp.fish`.
+Afterwards just type `wp` and press `TAB`, and fish will automatically source `wp.fish`.
 
 ### Dash/Alfred workflow