[Docs] add mockgen instructions to quickstart and makefile helper (#733)

#534

---------

Co-authored-by: Daniel Olshansky <[email protected]>

Makefile

@@ -133,6 +133,17 @@ check_ignite_version:
 		exit 1 ; \
 	fi
 
+.PHONY: check_mockgen
+# Internal helper target- Check if mockgen is installed 
+check_mockgen:
+	{ \
+	if ( ! ( command -v mockgen >/dev/null )); then \
+		echo "Seems like you don't have `mockgen` installed. Please visit https://github.com/golang/mock#installation and follow the instructions to install `mockgen` before continuing"; \
+		exit 1; \
+	fi; \
+	}
+
+
 .PHONY: check_act
 # Internal helper target - check if `act` is installed
 check_act:

docusaurus/docs/develop/developer_guide/quickstart.md

@@ -138,6 +138,16 @@ available commands. Looking inside the Makefile is a great way to learn how to u
 
 ### 1.3 Prepare your development environment
 
+Run the following command to install `golang` dependencies:
+```bash
+make install_ci_deps
+```
+
+If you encounter issues related to `mockgen` not being found or failing, try running the following command to verify its installation:
+```bash
+make check_mockgen
+```
+
 Compile protobufs, generate mocks and verify that all tests are passing by running:
 
 ```bash