add remote branch tikz style

Fixes: #19

grafiken/ex4-graph-premerge.tex

@@ -13,7 +13,7 @@
 	\commit[right=of \pepcommit]{\proofcommit}{lightblue}{\pepcommit};
 
 	\branch[right=of \proofcommit]{master}{\proofcommit}
-	\branch[above right=of \refactorcommit]{alice/master}{\refactorcommit}
+	\branch[remote, above right=of \refactorcommit]{alice/master}{\refactorcommit}
 	\message{\rootcommit}{initial}
 	\message{\pepcommit}{pep8}
 	\message[above=of \sortcommit]{\sortcommit}{presort}

grafiken/ex4-graph.tex

@@ -15,7 +15,7 @@
 	\commit[right=of \proofcommit, xshift=1.2cm]{\mergecommit}{lightblue}{\proofcommit,\refactorcommit};
 
 	\branch{master}{\mergecommit}
-	\branch[above right=of \refactorcommit]{alice/master}{\refactorcommit}
+	\branch[remote, above right=of \refactorcommit]{alice/master}{\refactorcommit}
 	\message{\rootcommit}{initial}
 	\message{\pepcommit}{pep8}
 	\message[above=of \sortcommit]{\sortcommit}{presort}

grafiken/example-graph.tex

@@ -29,7 +29,7 @@
 	\commit[right=of \proofcommit, xshift=1.2cm]{\mergecommit}{lightblue}{\proofcommit,\refactorcommit};
 
 	\branch{master}{\mergecommit}
-	\branch[above right=of \refactorcommit]{alice/master}{\refactorcommit}
+	\branch[remote, above right=of \refactorcommit]{alice/master}{\refactorcommit}
 	\message{\rootcommit}{initial}
 	\message{\pepcommit}{pep8}
 	\message[above=of \sortcommit]{\sortcommit}{presort}

grafiken/git-object.tex

@@ -26,7 +26,7 @@
 \begin{tikzpicture}[draw=nontext]
 	\node[HEAD] (head) {HEAD};
 	\node[branch, below=of head] (local) {local branch};
-	\node[branch, right=of local, fill=lightblue] (remote) {remote branch};
+	\node[remote, right=of local] (remote) {remote branch};
 
 	\node[branch, below=1cm of local] (commit) {commit};
 	\node[branch, below=1cm of commit] (tree) {tree};

grafiken/versiongraph.tex

@@ -60,6 +60,10 @@
 	, fill=black!10
 	, text=black!90
 	]
+\tikzstyle{remote}=%
+	[ branch
+	, fill=lightblue
+	]
 \tikzstyle{branch}=%
 	[ rectangle
 	, rounded corners=2pt