chore: error handling in convert-readme.sh script

.scripts/convert-readme.sh

@@ -1,5 +1,7 @@
 #!/bin/bash
 
+set -e
+
 INPUT_FILE="${1:-README.md}"
 OUTPUT_FILE="${2:-README.html}"
 

README.md

@@ -17,7 +17,7 @@ To install the extension to Polarion `ch.sbb.polarion.extension.pdf-exporter-<ve
 should be copied to `<polarion_home>/polarion/extensions/ch.sbb.polarion.extension.pdf-exporter/eclipse/plugins`
 It can be done manually or automated using maven build:
 ```bash
-mvn clean install -P polarion2404,install-to-local-polarion
+mvn clean install -P install-to-local-polarion
 ```
 For automated installation with maven env variable `POLARION_HOME` should be defined and point to folder where Polarion is installed.