automation - fix gitignore and README prepare release

Author: frantuma

.gitignore

@@ -11,3 +11,4 @@ target/
 modules/swagger-parser/src/test/resources/relative-file-references/yaml
 **/test-output/*
 dependency-reduced-pom.xml
+*.pyc

CI/prepare-release.sh

@@ -28,7 +28,7 @@ mvn versions:commit
 #####################
 ### update all other versions in files around to the new release, including readme ###
 #####################
-sc_find="\<version\>$SC_LAST_RELEASE"
+sc_find="<version>$SC_LAST_RELEASE"
 sc_replace="<version>$SC_NEXT_VERSION"
 sed -i -e "s/$sc_find/$sc_replace/g" $CUR/README.md