Fixed itemize in README.md (#86)

Author: natema

README.md

@@ -31,9 +31,9 @@ there already exhist a document at the given path.
 
 Once you have created a `TBLogger`, you can use it as you would use any other
 logger in Julia:
-    - You can set it to be your global logger with the function [`global_logger`](https://docs.julialang.org/en/v1/stdlib/Logging/index.html#Base.CoreLogging.global_logger)
-    - You can set it to be the current logger in a scope with the function [`with_logger`](https://docs.julialang.org/en/v1/stdlib/Logging/index.html#Base.CoreLogging.with_logger)
-    - You can combine it with other Loggers using [LoggingExtras.jl](https://github.com/oxinabox/LoggingExtras.jl), so that messages are logged to TensorBoard and to other backends at the same time.
+- You can set it to be your global logger with the function [`global_logger`](https://docs.julialang.org/en/v1/stdlib/Logging/index.html#Base.CoreLogging.global_logger)
+- You can set it to be the current logger in a scope with the function [`with_logger`](https://docs.julialang.org/en/v1/stdlib/Logging/index.html#Base.CoreLogging.with_logger)
+- You can combine it with other Loggers using [LoggingExtras.jl](https://github.com/oxinabox/LoggingExtras.jl), so that messages are logged to TensorBoard and to other backends at the same time.
 
 You can log to TensorBoard any type. Numeric types will be logged as scalar,
 arrays will be binned into histograms, images and audio will be logged as such,