docs: Reword sub-headings in pages in contribution section

docs/content/development/adding-post-breach-actions.md

@@ -16,7 +16,7 @@ If all you want to do is execute shell commands, then there's no need to add a n
 
 ## How to add a new PBA
 
-### From the Infection Monkey Side
+### Modify the Infection Monkey Agent
 
 #### Framework
 
@@ -43,7 +43,7 @@ If your PBA consists only of simple shell commands, you can reuse the generic PB
 
 Otherwise, you'll need to override the `run` method with your own implementation. See the `communicate_as_new_user.py` PBA for reference. Make sure to send the relevant PostBreachTelem upon success/failure. You can log during the PBA as well.
 
-### From the Monkey Island Side
+### Modify the Monkey Island
 
 #### Configuration
 

docs/content/development/adding-system-info-collectors.md

@@ -16,7 +16,7 @@ If all you want to do is execute a shell command, then there's no need to add a
 
 ## How to add a new System Info Collector
 
-### From the Infection Monkey Side
+### Modify the Infection Monkey Agent
 
 #### Framework
 
@@ -41,7 +41,7 @@ class MyNewCollector(SystemInfoCollector):
 
 Override the `collect` method with your own implementation. See the `EnvironmentCollector.py` System Info Collector for reference. You can log during collection as well.
 
-### From the Monkey Island Side
+### Modify the Monkey Island
 
 #### Configuration
 

docs/content/development/setup-development-environment.md

@@ -10,7 +10,7 @@ tags: ["contribute"]
 
 To set up a development environment using scripts, look at the readme under [`/deployment_scripts`](https://github.com/guardicore/monkey/blob/develop/deployment_scripts). If you want to set it up manually or run into problems, keep reading.
 
-## Agent
+## The Infection Monkey Agent
 
 The agent (which we sometimes refer to as the Infection Monkey) is a single Python project under the [`infection_monkey`](https://github.com/guardicore/monkey/blob/master/monkey/infection_monkey) folder. The Infection Monkey agent was built for Python 3.7. You can get it up and running by setting up a [virtual environment](https://docs.python-guide.org/dev/virtualenvs/) and installing the requirements listed in the [`requirements.txt`](https://github.com/guardicore/monkey/blob/master/monkey/infection_monkey/requirements.txt) inside it.