Adjust timing of standard library slides (#2125)

src/std-traits/closures.md

@@ -1,5 +1,5 @@
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-minutes: 20
+minutes: 10
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 # Closures

src/std-traits/comparisons.md

@@ -1,5 +1,5 @@
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-minutes: 10
+minutes: 5
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 # Comparisons

src/std-traits/from-and-into.md

@@ -1,5 +1,5 @@
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-minutes: 10
+minutes: 5
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 # `From` and `Into`

src/std-traits/operators.md

@@ -1,5 +1,5 @@
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-minutes: 10
+minutes: 5
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 # Operators

src/std-traits/read-and-write.md

@@ -1,5 +1,5 @@
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-minutes: 10
+minutes: 5
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 # `Read` and `Write`

src/std-types/hashmap.md

@@ -1,5 +1,5 @@
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-minutes: 10
+minutes: 5
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 # `HashMap`

src/std-types/result.md

@@ -1,5 +1,5 @@
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-minutes: 10
+minutes: 5
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 # Result

src/std-types/string.md

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-minutes: 10
+minutes: 5
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 # String

src/std-types/vec.md

@@ -1,5 +1,5 @@
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-minutes: 10
+minutes: 5
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 # `Vec`