docs: add missing backticks to :ref: (#541)

docs/source/concepts/LocationAndReference/SequenceLocation.rst

@@ -5,7 +5,7 @@ Sequence Location
 
 The sequence location class is a fundamental concept in VRS. Sequence locations are used to describe every form of :ref:`Variation`,
 and they have stand-alone utility for describing sequence locations in other (non-variation) contexts.
-This class is used to represent a location on a specified :ref:`SequenceReference`. The sequence reference is typically a 
+This class is used to represent a location on a specified :ref:`SequenceReference`. The sequence reference is typically a
 chromosome, transcript, or protein sequence.
 
 Definition and Information Model
@@ -23,7 +23,7 @@ At least one of the ``start`` and ``end`` properties MUST be specified in any ``
 When only one of these properties is specified, this represents an open interval beginning at the specified
 coordinate and extending left (when ``start`` is ``null``) or right (when ``end`` is ``null``).
 
-When there is ambiguity at a coordinate (e.g., when using a SequenceLocation to describe the confidence boundary 
+When there is ambiguity at a coordinate (e.g., when using a SequenceLocation to describe the confidence boundary
 of a copy number segment), this is specified using the :ref:`Range` class for that coordinate.
 
 .. admonition:: New in v2
@@ -37,7 +37,7 @@ The "Ref" Allele
 
 In some variant representation formats (e.g. HGVS, VCF) sequence variants are described by both their "reference"
 (ref) and "alternate" (alt) alleles. When representing an Allele with VRS v2, it is also possible to describe the
-ref sequence (derived from the :ref:SequenceReference at the location) using the `sequence` property.
+ref sequence (derived from the :ref:`SequenceReference` at the location) using the `sequence` property.
 
 .. admonition:: New in v2
 
@@ -49,19 +49,19 @@ Linear and Circular Sequence Coordinates
 
 When representing a linear sequence, it is expected that for a :ref:`Sequence` of length *n*, ``0 ≤ start ≤ end ≤ n``
 
-For a circular sequence, ``0 ≤ end ≤ start ≤ n`` is also allowed. In cases where ``end < start``, this represents 
+For a circular sequence, ``0 ≤ end ≤ start ≤ n`` is also allowed. In cases where ``end < start``, this represents
 a location that spans the circular sequence origin coordinate.
 
 .. admonition:: New in v2
 
-    The v2 ``SequenceLocation`` now also supports circular sequences. The optional ``circular`` property of the 
+    The v2 ``SequenceLocation`` now also supports circular sequences. The optional ``circular`` property of the
     :ref:`SequenceReference` class may be set to ``True`` or ``False`` to explicitly indicate if a reference is
     circular, and therefore if ``0 ≤ end ≤ start ≤ n`` is also allowed.
 
 Implied Sequence Coordinates
 ############################
 
-The *Sequence Location* class refers to coordinates on a :ref:`SequenceReference`; if that sequence 
+The *Sequence Location* class refers to coordinates on a :ref:`SequenceReference`; if that sequence
 represents a coding transcript, then the coordinates refer to the coding transcript, and not a
 chromosome sequence to which it aligns. VRS intentionally does not allow for `start` or `end` values
 that use an offset system to represent sequence not found on the :ref:`SequenceReference`.