Update install.md

Extra whitespace after ** in ** Gambit 16.3.0**.

Author: rahulsavani

content/install.md

@@ -4,7 +4,7 @@ title: Install Gambit
 
 ## Gambit 16.3
 
-** Gambit 16.3.0** was released n **2025-01-13**.
+**Gambit 16.3.0** was released n **2025-01-13**.
 
 * [Download](https://github.com/gambitproject/gambit/releases/tag/v16.3.0)
 * [Documentation](https://gambitproject.readthedocs.io/en/v16.3.0)