Make FAQ questions bold

Author: Photonios

README.rst

@@ -95,19 +95,19 @@ Installation
 FAQ - Frequently asked questions
 --------------------------------
 
-1. Why do I need to change the database back-end/engine?
+1. **Why do I need to change the database back-end/engine?**
 
    We utilize PostgreSQL's `hstore` data type, which allows you to store key-value pairs in a column.  In order to create `UNIQUE` constraints on specific key, we need to create a special type of index. We could do this without a custom database back-end, but it would require everyone to manually write their migrations. By using a custom database back-end, we added support for this. When changing the `uniqueness` constraint on a `HStoreField`, our custom database back-end takes care of creating, updating and deleting these constraints/indexes in the database.
 
-2. I am already using a custom database back-end, can I still use yours?
+2. **I am already using a custom database back-end, can I still use yours?**
 
    Yes. You can set the ``POSTGRES_EXTRA_DB_BACKEND_BASE`` setting to your current back-end. This will instruct our custom database back-end to inherit from the database back-end you specified. **Warning**: this will only work if the base you specified indirectly inherits from the standard PostgreSQL database back-end.
 
-3. Does this package work with Python 2?
+3. **Does this package work with Python 2?**
 
    No. Only Python 3.5 or newer is supported. We're using type hints. These do not work well under older versions of Python.
 
-4. Does this package work with Django 1.X?
+4. **Does this package work with Django 1.X?**
 
    No. Only Django 1.10 or newer is supported.