chg: [tools] Added sed to gen_misp_install_docs.sh to replace some formatting tildes which mkdocs does not really understand

chg: [docs] Minor touch-up to Changelog.md to correct for formatting issues.
chg: [config] Added correct paths to .gitignore for mkdocs

.gitignore

@@ -2,9 +2,9 @@
 tools/misp-wipe/misp-wipe.conf
 tools/misp-backup/misp-backup.conf
 
-# Ignore mkdocs site directory
-# /!\ UPDATE ONCE IN 2.4
-INSTALL/ng/site/
+# Ignore mkdocs site directory and mkdocs virtualenv
+site/
+tools/mkdocs
 
 # Other
 /vendors

tools/gen_misp_install_docs.sh

@@ -14,5 +14,13 @@ if [ -z "$VIRTUAL_ENV" ]; then
     virtualenv -p python3 mkdocs
     ${PWD}/mkdocs/bin/pip install mkdocs mkdocs-material
 fi
+
 wget -O ../docs/Changelog.md https://www.misp-project.org/Changelog.txt
+# This search and replace is sub-optimal. It replaces 3 "~"s beginning of the line 
+# and then just replaces the remaining 2 following tildes in the document. 
+# This might change the sense of some commit messages...
+sed -i "s/^\~\~\~/---/" ../docs/Changelog.md
+sed -i "s/\~\~/--/g" ../docs/Changelog.md
+
+# Deploy mkdocs to gh-pages branch
 cd ../ ; ${PWD}/tools/mkdocs/bin/mkdocs gh-deploy