docs: Revisit docs constructions to Github markdown extension (#619)

And partially revert syntax as GH Markdown is buggy:
https://github.com/orgs/community/discussions/16925#discussioncomment-7574895

.github/ISSUE_TEMPLATE/bug_report_local_install.md

@@ -82,11 +82,13 @@ terraform --version | head -n 1           2>/dev/null || echo "terraform SKIPPED
 python --version                          2>/dev/null || echo "python SKIPPED"
 python3 --version                         2>/dev/null || echo "python3 SKIPPED"
 echo -n "checkov " && checkov --version   2>/dev/null || echo "checkov SKIPPED"
+infracost --version                       2>/dev/null || echo "infracost SKIPPED"
 terraform-docs --version                  2>/dev/null || echo "terraform-docs SKIPPED"
 terragrunt --version                      2>/dev/null || echo "terragrunt SKIPPED"
 echo -n "terrascan " && terrascan version 2>/dev/null || echo "terrascan SKIPPED"
 tflint --version                          2>/dev/null || echo "tflint SKIPPED"
 echo -n "tfsec " && tfsec --version       2>/dev/null || echo "tfsec SKIPPED"
+echo -n "trivy " && trivy --version       2>/dev/null || echo "tfsec SKIPPED"
 echo -n "tfupdate " && tfupdate --version 2>/dev/null || echo "tfupdate SKIPPED"
 echo -n "hcledit " && hcledit version     2>/dev/null || echo "hcledit SKIPPED"
 EOF

Dockerfile

@@ -181,6 +181,7 @@ RUN . /.env && \
     (if [ "$TERRASCAN_VERSION"      != "false" ]; then echo "terrascan $(./terrascan version)" >> $F; else echo "terrascan SKIPPED" >> $F      ; fi) && \
     (if [ "$TFLINT_VERSION"         != "false" ]; then ./tflint --version >> $F;                      else echo "tflint SKIPPED" >> $F         ; fi) && \
     (if [ "$TFSEC_VERSION"          != "false" ]; then echo "tfsec $(./tfsec --version)" >> $F;       else echo "tfsec SKIPPED" >> $F          ; fi) && \
+    (if [ "$TRIVY_VERSION"          != "false" ]; then echo "trivy $(./trivy --version)" >> $F;       else echo "trivy SKIPPED" >> $F          ; fi) && \
     (if [ "$TFUPDATE_VERSION"       != "false" ]; then echo "tfupdate $(./tfupdate --version)" >> $F; else echo "tfupdate SKIPPED" >> $F       ; fi) && \
     (if [ "$HCLEDIT_VERSION"        != "false" ]; then echo "hcledit $(./hcledit version)" >> $F;     else echo "hcledit SKIPPED" >> $F       ; fi) && \
     echo -e "\n\n" && cat $F && echo -e "\n\n"