dev: set markdown and make as repository languages on GitHub

Author: practicalli-johnny

.gitattributes

@@ -0,0 +1,10 @@
+# Configure Languages for GitHub repository using Linguist
+
+# Markdown & Make detection,
+# exclude HTML, CSS & JavaScript
+docs/** linguist-detectable
+*.md linguist-detectable=true 
+make linguist-detectable=true 
+*.css linguist-detectable=false
+*.js linguist-detectable=false
+*.html linguist-detectable=false  

.gitignore

@@ -1,12 +1,26 @@
-*~
-.DS_Store
-._*
-*~
-*#
-.#*
-_book
-node_modules
-*.log
-book.pdf
-book.mobi
-book.epub
+# Exclude all files from root directory
+/*
+
+# ------------------------
+# Common project files
+!CHANGELOG.md
+!README.md
+!LICENSE
+
+# ------------------------
+# Include MkDocs files
+!docs/
+!includes/
+!overrides/
+!mkdocs.yml
+
+# ------------------------
+# Project automation
+!Makefile
+
+# ------------------------
+# Version Control
+!.gitignore
+!.gitattributes
+!.github/
+