Merge pull request #295 from naupaka/fix-images

Fix markdown image syntax per issue #293

Author: naupaka

episodes/01-r-basics.Rmd

@@ -216,7 +216,7 @@ but R is "not sure"
 about how to assign the name to "human\_ chr\_number" when the object name we
 want is "human\_chr\_number".
 
-![RStudio script warning]("fig/rstudio_script_warning.png")
+![RStudio script warning](fig/rstudio_script_warning.png)
 
 ::::::::::::::::::::::::::::::::::::::::::::::::::
 

episodes/03-basics-factors-dataframes.Rmd

@@ -185,7 +185,7 @@ you have the `variants` object, listed as 801 obs. (observations/rows)
 of 29 variables (columns). Double-clicking on the name of the object will open
 a view of the data in a new tab.
 
-![RStudio data frame view]("epidoes/fig/rstudio_dataframeview.png")
+![RStudio data frame view](fig/rstudio_dataframeview.png)
 
 We can also quickly query the dimensions of the variable using `dim()`. You'll see that the first number `801` shows the number of rows, then `29` the number of columns
 
@@ -844,12 +844,12 @@ First, in the RStudio menu go to **File**, select **Import Dataset**, and
 choose **From Excel...** (notice there are several other options you can
 explore).
 
-![RStudio import menu]("fig/rstudio_import_menu.png")
+![RStudio import menu](fig/rstudio_import_menu.png)
 
 Next, under **File/Url:** click the <KBD>Browse</KBD> button and navigate to the **Ecoli\_metadata.xlsx** file located at `/home/dcuser/dc_sample_data/R`.
 You should now see a preview of the data to be imported:
 
-![RStudio import screen]("fig/rstudio_import_screen.png")
+![RStudio import screen](fig/rstudio_import_screen.png)
 
 Notice that you have the option to change the data type of each variable by
 clicking arrow (drop-down menu) next to each column title. Under **Import