docs: docu initial values (fixes #371)

Signed-off-by: Yukai Chou <[email protected]>

Author: muzimuzhi

doc/latex/pgfplots/pgfplots.reference.errorbars.tex

@@ -216,8 +216,8 @@ \section{Error Bars}
 \end{codeexample}
 \end{pgfplotsxykey}
 
-\begin{pgfplotskey}{error bars/error mark=\meta{marker}}
-    Sets an error marker for any error bar. \marg{marker} is expected to be a
+\begin{pgfplotskey}{error bars/error mark=\meta{marker} (initially |-|)}
+    Sets an error marker for any error bar. \meta{marker} is expected to be a
     valid plot mark, see Section~\ref{sec:markers}.
     %
 \begin{codeexample}[]
@@ -238,7 +238,7 @@ \section{Error Bars}
 \end{codeexample}
 \end{pgfplotskey}
 
-\begin{pgfplotskey}{error bars/error mark options=\marg{key-value-list}}
+\begin{pgfplotskey}{error bars/error mark options=\marg{key-value-list} (initially |rotate=90|)}
     Sets a key--value list of options for any error mark. This option works
     similarly to the \Tikz{} `|mark options|' key.
 \end{pgfplotskey}

doc/latex/pgfplots/pgfplots.reference.markers-meta.tex

@@ -2527,7 +2527,7 @@ \subsubsection{Choosing a Colormap Entry as Normal Color}
 \subsection{Cycle Lists -- Options Controlling Line Styles}
 \label{sec:cycle:list}
 
-\begin{pgfplotskeylist}{cycle list=\marg{list},cycle list name=\marg{name}}
+\begin{pgfplotskeylist}{cycle list=\marg{list},cycle list name=\marg{name} (initially |color|)}
     Allows to specify a list of plot specifications which will be used for each
     \hbox{|\addplot|} command without explicit plot specification. Thus, the
     currently active |cycle list| will be used if you write either