fix docs build

this fixes the  Error: YAML Exception reading bnd/docs/_instructions/init.md: (<unknown>): mapping values are not allowed in this context at line 4 column 13

Signed-off-by: Christoph <[email protected]>

docs/_instructions/init.md

@@ -1,7 +1,7 @@
 ---
 layout: default
 class: Project
-title: -init: ${MACRO} ( ',' ${MACRO}) * 
+title: -init ${MACRO} ( ',' ${MACRO}) * 
 summary:  Executes the macros while initializing the project for building.
 ---