title: Setup bitbucket pipelines yaml file
body: <p>I am new to using bitbucket was trying just to set up simple build pipeline. Clicked on pipeline menu option and edited the example file and committed. This created a pipeline yaml file on my master branch. It ran and built ok - it did not build my develop branch.</p>
  
  <p>Do i need a pipeline yaml file on each branch.</p>
  
  <p>I can see from docs that i can put branch specific steps into the one file, if i edit the file that has been commited on master to include a section for the develop branch, will this run when i do a commit to the develop branch or will this only trigger on a commit to master branch. </p>