deps: check if pandoc and awk are installed

- Checks if pandoc is installed.
- Checks if awk is installed.
- Closes #6.

Co-Authored-by: iGor milhit <igor@milhit.ch>

Makefile

@@ -6,6 +6,10 @@
 .DEFAULT_GOAL:=help
 SHELL:=/bin/bash
 
+pandoc=$(shell command -v pandoc)
+pandoc_version=$(shell pandoc --version | sed -e 's/.* // ; 1q')
+awk=$(shell command -v awk)
+
 .PHONY: help deps
 
 help:  ## Display this help
@@ -13,3 +17,13 @@ help:  ## Display this help
 
 deps:  ## Check dependencies
 	$(info Checking and getting dependencies)
+ifeq ($(strip ($pandoc)),)
+	@echo "pandoc is required"
+else
+	@echo "pandoc" $(pandoc_version) "is installed"
+endif
+ifeq ($(strip ($awk)),)
+	@echo "awk is required"
+else
+	@echo "awk is installed"
+endif